Install, set according to needed height (may differ either side as needed) drive the car for at least 500-1000 miles and then go back and re-adjust. They'll be just fine after they're broken in. This has been explained multiple times on multiple threads. Enjoy the ride!
Every every every coilover/shock sleeve combo will never give you the same ride height straight from the box.
When I installed my brand new Koni yellow and GC sleeves, all on lowest setting; my driver sides were 23.75" and 23.25"on the passenger side. Drove them like that for 600 miles with no alignment. Wore my tires out, got new wheels and an alignment. Went to jack the car up messed with the sleeve a bit and now I'm at 23" all around.
