Quoting atc250r:
The problem is that when you run them all the way to the top there will be no droop to the rear suspension if they're anything like the DSM Teins that a lot of guys used. I put one on the lift and the rear wheel only dropped about an inch, maybe two. That doesn't sound like a big deal until you hit a whoop in the road and the rear tires pretty much lose contact with the ground. /ubbthreads/images/graemlins/uhh.gif Buy the right ones for the GVR4 if you feel you must have coil overs.
John
/ubbthreads/images/graemlins/confused.gif The spring being adjusted to the top of the threads isn't going to reduce droop at all. Droop is based on shock shaft/body length, not spring size or adjustment. The springs aren't locked into the top hat or the bottom seat, so the shaft can droop independently. I would worry more about coil bind during compression if they are adjusted that high up the threads.
The reason the DSM Teins have so little droop is probably due to the fact that the overall assembly is shorter.