Michael,
I didn't know your were once into rocks. So let's step into that arena (rock climbing) and do a macho, or not so macho skills assessment. Here's the question in retro '60 speak:
Were you a 5 10 ee? Or phonetically; a 5 tennee? We didn't have 5.12 back then (difficulty ratings).
Me- best I could do is 5.9 with an instructor asking me to put a little more faith in an edge foot hold I couldn't even see (standing up on a little flake of granite and putting my full weight on it.)
I was happy to move into a climbing arena that had me climbing round cylinder objects (trunks and branches). Look mom--no rope shear!
Treeman
Waving from a treetop,
Peter Treeman Jenkins