There's little misfire risk unless say you were "driving drunk" and hit a close limb and caused the bag to come straight back. The way to do it for any high powered big shot etc. is to stand on or snag the throwline, the bag can come straight back at you at high speed. Happened to me once with my big slingshot, the bag came right at my face, tilted my head slightly and it missed. It's a real concept, wear eye protection when firing big slingshots ;-)
I've never hit the arms of the footshot or my foot, it's very difficult to do so, not sure how you would, maybe install it on your foot wrong.
Yes, I'd like to go into production with the Footshot, thx for the comments Richard.
-AJ