Finally got the Avalon Linear performing well last night. Main thing was a poor choice in DEC algorithm (Lowpass2). Switching to hysteresis in DEC drastically improved guiding. Final tweaks got me pretty close to the recommended settings, even though they did seem crazy at first.
I managed to get over 3 solid hours on Gabriela due to not spending half the night tweaking gear. Hopefully that's the norm from here on out.
This one isn't processed all that much. I didn't even decon it
As always, full res is available on
Astrobin.