I was fortunate to have unusually good (for here) seeing conditions for the GRS sketch. I was able to get out my 8mm Burgess Optical Planetary ep which always gives good views when the seeing supports 250x. I also took the time to examine Jupiter with my Wratten 56 (green) and W 11 (yellow-green) filters. This improved the contrast and cut the glare. The transparency was above average and I needed something to dim Jupiter a little-it currently shines at magnitude -2.8. Recently, clouds and haze have been dimming it for me, sometimes too much to use a filter to any advantage.
As Sol Robbins observed in his recent sketch, the NEB continues to have lots of bays in it where it is opposite the GRS. I wonder if the one has any effect on the other? There was also a *very* dark barge on the north edge of the NEB. Somehow I missed seeing the dark area just following the GRS which I have seen in images. The North and South Temperate Belts were both visible as well as the North North Temperate Belt--there really is no substiture for good seeing.
For both sketches, I used my usual HB and 2B pencils and Sol's template on copy paper. The sketch was flipped right to left after scanning.