I have had good luck with Thunderheads, never had a deer go more than 50yds
Wow that is a strong statement! I've heard it said several times that Thunderhead BHs weren't too bad. I shot many many deer with all kinds of BHs. And I've had several drop or lie down and expire within sight. The shortest distance one went was about 60 yards and that was with a perfect double lung, top of the heart shot at a relaxed buck with a razor sharp Magnus Stinger. Heck, last year using a Rage I center punched the heart of a doe at 10 yards almost shearing it in half and she went about 75 yards. So either your range estimation is way off, you haven't shot too many deer with the bow or you've been extremely lucky.