Tonight is a night of many successes. I've been using my trusty AVX for about 3 years now and guiding RMS under typical conditions have usually fallen somewhere around 1.5- 2" when using a 1.025 arc/sec image scale. Lots of tossed subs at that scale, and had to switch back to a smaller, lighter refractor to make the most of my time.
I'm using a CEM60 now, and this is its real first light. For the first time I've had success using SGP's plate solving and centering, and after a good polar alignment and calibration in PHD2, I'm getting .73 arc/sec average without any tweaking.
There's nothing like consistent, round stars! Now for a cold porter while waiting to see if the meridian flip works