Thanks Steve, but the way I did mine is probably a bit more than most people want to do, or are capable of.
But just for kicks I'll tell you. :D
I replaced all the rollers in my drivers door with thick nylon discs and used fine thread bolts and nyloc nuts for mounting and length adjustments.
It made it so I can adjust any angle of the glass in any direction.
One other thing I did was to crimp the tracks on one side so the glass stopped before it got below the whiskers.
That helped a ton with how solid the door feels when closed.