It's indeterminate whether we did this one right, but I think we did the 5.9
(outside the huge groove, on the face) rather than the 5.10 (which I think
goes up just inside the groove.) This was definitely runout, and deserved the
R rating, but was probably easier than 5.9, at least the way we did it. Also,
with offset nuts (or hybrid aliens) the top would probably have been
protectable.