I used my U694/FW8G/AO-8a with my cem120 mount last night and I noticed the AO wasn't bumping the mount, it would get to 100% deflection and I would have to manually restart to reset the AO lens. A clue is that I received a message when I hit start in the expose tab " dithering enabled but guider not connected, continue?" Not sure why I get this message as I already did a mount and AO calibration in the AO tab and it successfully moved the mount. I used the camera guiding with the built in oag in the filter wheel previously with no issue so I know everything connects and guides properly. I use pulseguide with this mount.