we have installed a edge with extensions on a xtra 10 model.the problem were having is that we cant get enough spring pressure and shock pressure on the first part of the rear shocks travel.it has way to much sag in and bottoms out a lot.tried springs on thye high setting and moved the rollers back a hole.ive noticed following him that his skis spend a lot of time in the air.doesnt turn well and lifts alot.is it possible that the skid is in wrong causing us to lose help with the front spring on initial squat.weve tried adjusting that one too.im thinking from reading on here lately that the front of the skid is too low to the ground.thus holding up the front of the sled and causing all these problems.also what would it do if we moved the center pivoting mount back one hole??seems it would cause the rear too work sooner.tia.