no i haven't but i don't ever shoot at the same spot. if i did i would run out of arrows every week or two

I have twice at 20 yards or so. I have also busted many nochs and ripped many flechings.

Like alot of guys here I ( at one point, I've not practice for probably a year now ) I got to the point where even at 40yards I would make 5 bullseyes and aim one arrow to each. Before I did that I was probably averaging a ruined arrow each group. As you can imagine, this got old REALLY quick and I stopped shooting at one mark. (it got expensive too) Never a true robinhood though.