I wrench for a living.....and happily it's mainly on porsches
I'll take a pick the next time it happens, it'll look like a vienna sausage LOL
Fist time it happened when I was doing a clutch in a 951......
The second was when I was putting a 914 tranny back on the tranny jack after a rebuild....I guess I'll have to be carefull how I grab heavy things for a while.....
Never had any problems with the trigger finger, the middle finger gets used a lot driving in orlando too LOL