18" and 19" Wheels and Tyre Selection

[h2dca]

Further to my previous post I have been advised on the following tyre selection for these wheels.

www.pistonheads.com/gassing/topic.asp?t=116166&f=17&h=0

Front 18" x 8.5" = 225/40/18
Rear 19" x 9.5" = 275/30/19

Considering the car ran on 17" wheels
Front 215/40/17
Rear 245/45/17

This would make the car sit 1" lower at the front, with the new proposed wheels the difference is just under a 1/4".

Is this OK, does it effect the balance etc, sorry if this is precieved as a dumb question but advice would be appreciated.

Best regards
Hamish
94 S4