Causes of poor starting when hot & hesitation

[KentishS2]

Any ideas on this one folks?

My S (2.9) starts perfectly whilst cold but when the engine is hot and it has been standing for 10/15 mins it can take a few turns to start. It's OK if I leave it for a few minutes it starts as well as when cold but if it is that bit longer it gets a little reluctant for a few turns of the starter.

I have new plugs fitted, so they should be fine.

I have jerking acceleration at mid throttle whilst driving and I have found that this is the TP which I'm replacing next week but I'm also guessing that perhaps it is running a bit lean as this can cause jerkiness too and could also cause poor starting whilst hot.

Does it sound like I'm on the right track, or could this be anything else?

[WildfireS3]

Mine does that. Starts almost immediatelty from cold but has to spin up a bit when warm. Never noticed any problems after though.

[KentishS2]

Mine also jerks a little which can be that it running a bit lean but this could just be the TP, see what it's like after fitting the new Cerbera TP next week.