Actually, no, it's a new thing...it WAS climbing walls, although not as high as I'd like (I can handle that, though), but then recently it just decided it didn't feel like it anymore, I guess. ...and to answer your questions as best as I can;
The handle doesn't really lock into any certain position, it just kind of floats around, I think...I'll stick the little bugger in the pool tomorrow and observe, though.
No weights on the handle...and I have no idea if we have extra floats, or where they are if we do.
Well, the robotics engineer says everything's operating perfectly, but I suppose he could be wrong.
No...and I never thought about that part...I leave the filter going because of all the debris that the robot shoots out of him...I'll try shutting off the filter tomorrow when I stick the little guy in there.
Thanks Carl!!