In reply to:
It accelerates and stops better due to the improved weight transfer and the ride is suprisingly good, definitely no worse than the US 030 which I had previously. The car also looks much better sitting 40mm lower.



Hmm, what was the english expression for that...wishful thinking I guess.
There is no improvement in acceleration and stopping, I have that info first hand. And X74 makes the car around 30 mm lower (vs. standard height, not vs. M030 height) with a possible variation of +/- 10 mm.

I'm glad to hear that you like the X74 setup but the GT3 swaybars and drop links don't make much sense to me.
I've been assured that the factory setup is perfect for track racing and playing around with it just makes things worse, especially because the suspension is not height adjustable.