Good to hear your worm is moving more and using its tail.
Pat actually has like 4 spots. I catch him under his CHE either curled up under it or stretched out fully across the perch, then on the second perch at the intersection of the horizontal and vertical perches, and finally on top of his plant. Last night I caught him in a new place. He had his tail wrapped around his top perch and was stretched out on the semi vertical perch.
And honestly, I'm not too worried about Pat biting me. He seems pretty laid back and the few times I have disturbed him from sleeping, he just calmly lifts his head from under his coils and looks at me and then either sits there or slowly climbs to a higher perch and curls back up. He did hiss a few times when I first got him and disturbed him but he doesn't do that anymore.
As for cutting plants back, that's why you use something like a Parlor Palm or other palm which grows slow or use nerve Plant which is more of a low grower. I ended up taking out the Pothos and Prayer Plant as they were growing too tall and interfering with Pat's ability to sit on his lowest and second perch.
I need Pat to grow faster so I can get him either that giant AP cage or something more realistic like a 4x2x3 A20.