A little poor seeing, but thanks to Jari Kuula I got to hear today that the Einstein crater may be noticeable. That's a pretty tricky case. The full moon was really bright and shadows were clearly visible from the south side due to decent libration. Einstein's direction was a little more awkward, visually the hole was visible at the appropriate point, but nothing is very clear from the point of view of drawing observation. I grabbed a series of pictures from the area and that western edge of the Moon is quite nice to see - from here, Einsteink peeks behind the edge.
Figure 1 shows the western edge of the Moon a little more broadly, to outline Einstein's location. In Figure 2 in more detail, the Einstein region itself, the outer edges of Einstein and Einstein A, is the area between the arrows.
The backbone inside Einstein is Einstein A, cut off by some shadow at this point in time, and it does not stand out as well as it could. Einstein is a fairly large crater, 170 kilometers in diameter, and Einstein A is located in the middle of the crater, like a donut hole.
The resolution of the images is what is stacked on the stacks of a few images.