After you get the limbs bending evenly with the gizmo. With the bow strung, measure the distance from the string to the belly of the bow at several points from the string nock to the handle and compare the top limb measurements against the bottom to see which limb is further from the string. The one with more distance has positive tiller.
I usually even them up and sand a little off the top limb, shoot a few arrows, check arrow flight and hand shock, check tiller on the limb I sanded and make small corrections until the bow shoots like I think it should.