OK, it's still running away. i also upgraded all the way to 2.6.1dev11 just to see if there would be any differences (had been running 2.6.1dev7). attached are logs from dev7 and dev11. i think i followed your procedure exactly except in one of the runs on dev11 i think it was looping when i rotated the rotator. subsequently i went back to 0 degrees, checked that the guiding was still working, then stopped guiding, rotated and started up again.
https://drive.google.com/file/d/0B6cW4ae2KyMJcnhvUThoTjF5ejg/view?usp=sharing
rob