HS -
Since our rig (1500 pulling a light 1575) was already level and I only needed to remove a small amount of bouncing/porpoising I never measured the top of the ball height.
Even with 3 & 3 wedges (the max) everything still sat & towed level. The issue was that the ride was too stiff. I went to 3 & 2 wedges and all is truly perfect. 3 & 2 wedges is the perfect amount of wedges to keep the springs exactly where they sit with no load on our truck.
If I were you I would get a new drawbar with a 1/2" taller rise for that issue.
The StableLoads aren't for raising the ball so much as they are to smooth out the towing ride.
Finally, if you are the least bit handy I would save your money to have someone do the installation as assembling the wedge packs can happen in the comfort of inside your home. Install is really just installing a bolt & then tightening everything up. Then, like me, if you decide to remove or add a wedge you aren't paying someone else again.
Here are the entire under-the-truck installation steps -
A bolt, the wedge pack, a washer, a locking washer, & a locking nut.
