repeatability with a GEM

I'm considering permanently mounting my CGE1100. Due to limited space and other considerations, I'm contemplating leaving the mount outside, and keeping the OTA inside. But I'm curious what kind of repeatability I can expect- how much can I expect the alignment to change (in both polar & goto senses) each time I remove/replace the OTA? It seems like it would be minimal considering the dovetail design, but I'd appreciate any input from people who actually have experience with repeated OTA-swapping. Experience with a CGE or similar mount (e.g., G11) for imaging would be most interesting.
Thanks in advance,
Bob

Robert - The polar alignment of the mount is independent of the optical alignment of the tube with the mount. If the polar alignment of the mount is precise, the scope will track well regardless of any errors is the optical alignment with the polar axis. That being said, it seems to me that any self-respecting goto mount will be capable of putting the desired object inside of the feild of view of a low power eyepiece, especially if you take the time to calibrate the goto mount on a star of know coordinates. I have an old non-goto mount and have no problem swapping my OTA, and I only use old fashion setting circles. Having the mount permanently located will make all the difference.