in normal everyday driving what RPMs do you shift at. i shift at 3500 - 4000 RPMs. i have 750 miles on my cooper. i feel like it likes to be driven alittle spirited. i used to have an S and shifted at 3500 - 5000. i felt more confident shifting the S engine at higher revs because of the stronger engine internals and more suped up engine. is the regular cooper engine ment to rev high as well?.