After hearing the SLAS board was going to open the Grim scope from 10 last night to 3 this morning I went over about 2 and found no one there (where was everyone?). So as long as I was there and Jupiter was nearing the meridian I opened the Refractor House and had my own private Jupiter party. I started with a 17mm Plossl (200x) and, despite turbulent seeing was surprised to see how obvious Callisto's shadow was and delighted to see the scar. While not as obvious as the shadow I really didn't have to try hard to see the scar. Next I installed the bino viewer and inserted two 17mm Plossls. Since the bino viewer requires the use of a 2x balow that gave me 400x which was too much for the seeing. So I switched to a set of 40mm Plossls (170x) and spent most of the rest of the session with that setup. I realize the 3D feel of the view through a bino viewer is just an illusion but on Jupiter tonight is was a very convincing illusion. Very comfortable viewing using both eyes and Jupiter just seemed to hang in the void in front of me. Lots of bands and swirls in the bands. The GRS was way off to the side and I had to struggle to see it (I'm not completely sure I did see it). All in all, a fun session. patrick