these people dont know anything by saying 60mm is too low to drive everyday
ive lowered my car 4 times now
from 35 front/40mm rear
to 60mm front / 70mm rear
to 75mm front / 85mm rear,
now at 90mm front / 85mm rear
at 60mm front, 70mm rear i had no problems whatsoever with rubbing or 'bouncing around'
even when it was 75f/85r i didnt really encounter much problems, obviously just had to take it slow over bumps and watch out for potholes
can still take a full car either way and the ride felt fine for an everyday car.
30/40mm got boring and started to look no different to standard.
60mm all round is a nice height to sit at