Shallow groove to a steep face with bad feet and tricky bulge just below the anchor? The groove could be a crack, i don't really remember. I was able to flash it and thought maybe .12a. Does that sound like the one? Its been around for two years or so. There is also a second pitch at 10d or 11a. Dont remember the name.
Have you tried the new-ish one on the far left side of the cliff? Not quite as hard but much more sustained.
Yeah, The 10 is just to the left of Bob Lob Law, and shares the anchor. The hard mystery climb is to the right, all bolted with a chain anchor of some kind. "Steep face with bad feet and tricky bulge" sounds about right, especially if you add "no hands either" but there wasn't any seam or crack that I recall? Could be wrong though...