How long does it take for new tyres to scrub in? I'm going to get shot down in flames here but I don't like the feel the Michelin PS4's are giving through the steering wheel. Feels very light and floaty and bouncy where the Bridgestones had a better feel a bit more weighty. Checked tyres and pressures are ok so hoping a few more miles they'll improve.
If it helps, try lowering the pressure,
different car I know, but same tyres, I had the same feeling as you with PS4 (225/40/18)when changing from Dunlop’s on my ED35, floaty and vague,and particularly noisy, that was at the recommended pressure of 2.6 bar, lowered to 2.35-2.4 bar and perfection, more grip ,quieter , very stable and the turn in was better.
According to Michelin technical rep. The PS 4 has very hard sidewalls so at vw’s very high pressures it creates a sensation of being over inflated, which is what youv just described.
Also it will take 100-200 miles for the release agent to fully ware out, sometimes more if it’s really cold..