andyson: But maybe the invisible branch is gone.
No, it's still there. You have to be careful aiming when the wind is going from left to right. Aiming left of the hole, even against a low wind like 7 mph, brings that rogue branch into play. How do I know? Yesterday dinged a shot aimed against that wind and got the branch. It's probably mapped a little tight. :-(
btw, Andy. I think you're right about the sand traps all being 30-40 at best. I can't find the 10-15 I thought I saw there.