JP, the first problem sounds like a calibration issue....I can't say for sure, because I've never had that problem.
I have, however, had the problem with non-sticking repeaters...primarily my brakes. I always wrote it off to a sim issue though, not a stick issue.
Even that though is minor...wouldn't trade this stick for the world!
I was mistaken about the maximum power percentage it goes to 99% but idle its at about 6%, but i still like it alot, the only thing i wish it had was force feed back