I ran the F1 v2s for almost 30k and yes the sidewall is softer than the Michelin PS3 I ran previously, but I enjoyed the more compliant ride it gave and never had a problem with grip or feel whilst running them at the VW recommended 38PSi
They are very pressure sensitive though compared to other tyres imo, I used to drop them to around 30psi for track use and on the odd occasion I had forgot to top back up for the drive home the difference in feel was noticeable, not a huge difference but enough to make me crack out the compressor and get pumping...
Great tyre though imo, saw me through track days at the 'Ring, Spa and Oulton in monsoons and 30'c with no complaints other than fairly high tyre wear compared to the PS3