Hi all. PHD2 seems to be working fairly well for me, but for long exposures my stars are a little eggy in the RA direction. My RA error runs about twice my DEC error. What settings should I look at to improve this? FWIW it's a C8 on a CGEM, well leveled, balanced, and polar aligned (< 1'). Multi-star guiding, 2s exposures. No errors reported during PHD2 calibration. Guide scope is well focused, darks used. Unfortunately I forgot to take a screen shot while guiding last night, but everything looked reasonable, other than the RA error (~0.2 pixels last night, ~1") being twice the DEC error (~0.1 pixels, ~0.5"). No wind to speak of. Other than turning on multi-star guiding, all my PHD2 settings are the defaults.
If there is a good tutorial online that explains how to use the settings to address specific problems like mine, I would greatly appreciate that, too.
Thanks for your time and thoughts.