[Zeke]

Whether you start the pull at the top of the bottom, make sure the glass is bumped all the way in the opposite direction before pulling the rope. A glass suction cup is almost a necessity and certainly a handy tool. When finished, try to move the glass in all directions to center it while the soap is still wet.

Personally, I think it's easier to push and seat the glass upward and finish at the bottom. I know it might seem counter intuitive, but the shape of the opening allows more movement upward. When done, just wiggle it downward to close the gaps at the lower corners if necessary.

There are several tutorials on the 911 BBS on all models.