I'm glad you posted this....but I'm not so glad you got hurt. It's a good reminder as to what those crossbows can do.
On my Horton Havoc, I took some "Skaters tape" and stuck it right above where my left hand goes on the forearm. That's my "reminder" that should my left hand "hit" that tape....that's the danger area if my hand goes above it.
So far it's worked. I can only hope that with constant diligence and reminders that I don't end up with a string thru any part of my hand.
Again...thanks for your post...and I'm sorry you had to go thru this.
SW