Nope, it's a technique not required for normal driving. An advanced driving skill, if you will.
I'll deal with these two together. IAM and RoADAR I believe teach that the braking and gear changing shouldn't be overlapped as best practice. However the sum total of IAM and RoADAR is to make us safer on the road, so provided that you aren't causing risk by HnTing they won't be too upset.

TrafPol wouldn't give a st about HnT. If by heeling and toeing the driver missed the brake pedal and drove into a wall, they missed the brake pedal. You can do that without HnTing.

I can drive without a clutch or brake too, but since I had to pay for them when I bought the car I feel it's quite a good idea to make use of them, since they are depreciating assets after all. Presumably when you say you drive without the brake or clutch you "float" the gears and then rev match in neutral to then slot in a lower gear for engine braking . To an external party that will look like heeling and toeing, but without brakelights. So as far as the traffic police are concerned you are being as much of an asshat as me, but with a faulty vehicle. You'd be more likely to be stopped than me IMO.

its, not it's.

The law doesn't consider it a problem, the law considers bad driving a problem. By driving badly I mean driving inappropriately close to the limits of the vehicle. If you consider Heel and Toe to be a racing technique to be used only when driving in a racing fashion, you would think it dangerous. That's not the case though. Principally for me it's an aid to smoothness in driving.

There's no reason to not overlap controls - we overlap steering and accelerating quite often, for example - but the important thing is to do it safely, and the way that's judged is by people who aren't sat in the passenger seat with a clipboard, tutting.

''Principally for me it's an aid to smoothness in driving.''

So you're driving is not smooth otherwise?

Ok, I've wasted enough electricity discussing the minutiae of 'advanced driving' (just the name 'advanced' irks me, and gives a certain type an overgrown sense of their own superiority)

I'll word it another way for the benefit of people who maybe aren't so well educated...

What's the f*****g point of H&T on the road in a modern car with synchromesh gearbox? And if it's gonna be 'I can get more power out of my 1.2 Clio or Corsa, and it's smoother' I'm just not gonna bother!

You'll have to excuse my amusement at reading that at the end of 5 posts in a row from yourself

As has been said H&T is smoother and more mechanically sympathetic than not doing it. Of course it isn't 'necessary' for road driving, but neither is driving smoothly at all if you're making that argument.

Personally I see no reason for not using H&T unless it is beyond the ability/experience of a driver (ie taking their attention away from more important things) or a vehicles pedal spacing makes it too awkward. Plenty of drivers are quite happy not using it and thats fine, but for me personally driving without it feels a bit compromised.

These organisations regard avoiding brake gear overlap as generally providing better safety margins, with exceptions such as making a slow turn off a fast road with traffic coming up behind. They accept overlap in these situations and don't have an issue with H/T providing it's done properly.

Oh good god, where to start?

Firstly, lay off the Red Bull. Seriously, the human body does need sleep. Unless you are on a nightshift, or unemployed and sleeping in the day so you can watch all of Babestation, you need to go and have a lie down.

First rule of the internet is to never assume anything about anyone you have a discussion with. You ignored that rule by assuming that I've learnt "a system", I'm not a Police officer, and that I can't change gears without using the clutch. At least two of those assumptions are wrong, can you guess which?

I went wrong by mistakenly assuming that you were of a sound mind...

For what? The grammar corrections? It's "thank you", by the way.

Can we please forget the bickering and get back on topic? I am genuinely interested in this topic...

I have tried HnT a few times on B roads on the MR2 and EVO. As I am not on the track I didn't push the car on the limits when heel and toeing but rather tried to keep the rev up for gear change which has the added bonus of holding boost.

My current car is dual clutched automatic so the HnT effect is done automatically. Interestingly enough I had a 370Z manual courtesy car and there's a switch to simulate HnT - it was called "Synchromesh" or something like that.

I don't think so. I think this is exactly the place to talk about different skills and how they might improve one's driving. I don't think this forum need restrict itself to topics that are prerequisites for an IAM or RoADAR test pass.

It's not a skill they require. I've not used it on an IAM or RoADAR test but the consistent message I've heard from people who have is that examiners have had no problem with it.

From my perspective, yes. For a lot of people, going through IAM or RoADAR training involves learning new techniques (e.g. that might be pull-push steering, or brake gear separation, or block changing). It is on the public road where they attempt these things, which can initially be quite alien to them, and it is a very normal experience that people feel their driving gets worse before it gets better. Their observer/tutor should have prepared them for that possibility and reminded them that safety is paramount. Standard advice would, fairly obviously I hope, be to remind them to give themself more time and perhaps find somewhere quiet to practice if they feel they need to.

The point I'm making is that the idea of attempting new techniques on the public road is integral to IAM and RoADAR training. The only different with H&T is that it's not necessary for IAM/RoADAR. But that doesn't make it a technique unsuitable to attempting on the public road. You are changing what you're doing during braking though so, apart from emphasising the safety thing (i.e. make sure of the braking and be prepared to accept fluffing the gear change - not the other way round - and practice somewhere quiet so you have plenty of time before the bend/junction/whatever to sort the gear change if you do fluff it) the only bit of advice I'd add is to make sure that, with your foot in your H&T position on the brake pedal you can still apply full braking (e.g. you can still trigger the ABS).

I can't answer that one as I'm not a TrafPol .

Sometimes people in the IAM/RoADAR world can get quite wound up about H&T on the road - I think because they've heard of it in a racing context and so they assume anyone talking about using it on the road must be approaching their road driving as if it was racing driving. I don't understand that. Anyone familiar with Roadcraft driving will know what rev matching is and, I expect, view it as a good thing. And they will know what brake-gear overlap is and that it's sometimes appropriate. H&T is just the name for not having to sacrifice rev matching during brake-gear overlap.

Personally, I prefer to rev match my gear changes. So I use H&T in situations where, at the point I want to change gear, I do not want to be off the brake (that usually means going downhill). I also use it in situations where I could separate braking and gear change (and so have my right foot available for rev matching after braking is completed) but I feel that H&T gives a better flow to the drive dealing with that hazard (e.g. some bends and roundabouts on faster roads).

As for the legality, as I say, I'm not a TrafPol (or a motoring law expert). I have never heard of a specific legal prohibition of H&T and I can't believe there is one. Losing control of your car and crashing is legally dubious to say the least, regardless of how you operate the controls. I guess if someone felt that when using H&T they were more likely to lose control then I'd probably advise them not to do it.

Right idea, wrong pussy. That's Goldfinger.