It's a gray rainy autumn day, so a good time to do a little upgrade. I ordered an ⅛" (3.2mm) thick aluminum spacer (6"/152mm OD x 3"/76mm ID) for the Orion Atlas pier adapter I use for both the Orion and the Sky-Watcher EQ6-R Pro. The Orion Atlas sits perfectly flat in the machined center and cut out ring, but the EQ6-R Pro sits slightly higher because the depth of the center is probably millimeter too shallow. Although the center bolt held it in place, the EQ6-R Pro always sat at a slight angle. I never liked that. Time to fix it with an aluminum spacer. I drilled a hole for the azimuth post, and we're back in business!