Well I am pretty sure no one has lowered one since they are barley out. But I was at the Anaheim Supercross this last Saturday and noticed the supercross bikes seem to be lower suspended than the ones we buy. I have read where some people on the late model YZ450's use a lowering link in the rear to get a bit better handling. I understand the better way is to internally lower the shock and not mess with the geometry of the link. Here is a picture I took of Cooper Webb's winning YZ250f bike notice the travel of the forks and shock. All of the bikes look lowered by the way and I understand most of the riders are not giants. Compare it to a new WR/YZ suspended bike. Especially in the rear.