I just took the car out for a drive!
I'm very surprised on a couple of points.
1. with a softer spring rate the car feels more ''stable''
2. it seems the set up is more ''detailed'' like you can feel the road more especially on the rear
3. also seems to plant down power a bit better
but its wet out so I can't do much so far so good interesting first day.
as for the lower support the kit doesn't come with helper springs on the rear don't know why but I'll find out
Past: Gintani stage3 M3
present: Porsche 993RWB, 964RS America,996 cupcar, 964 turbo 3.6, 991C4S,997GT2, Cayman GTs,i3