My weasel-arm didn't allow more than 5-10 minutes at a time until around bednight when I didn't have any problem doing about 40m. I imagine I'll be doing short episodes for a while.
Taking care of an aggravatingly wimpy arm ought to keep my from overworking any other body part.

Now I won't be nervous about putting a little more strength to that screw thingy! I had myself horrified at the idea that I might tighten it enough to spin the wingy-part off and if I did that, I know I'd never admit it..which would mean it would never get shortened.

I bet I am going to get really tired of Soldier's Joy before long...