I shot Thunderheads and Muzzy, both 85gr for years at Whitetails. Even after the mechanicals and other fixed took over as the "it" broadhead to have.
In 2017, I went out to ID for archery elk and my guide recommended Trophy Taker Shuttle T's. After doing some research, a lot of people recommended the G5 Montec, too. I bought both, but I shot the Shuttle T's slightly better (identical to the TT field points).
I shot my bull at 32yds - I hit his left front shoulder, broke 3 ribs on that side, double lung, liver, passed through the gut wall, broke off his right rear flank and stuck in a tree 9 yds behind him. He was quartering to me, so it passed, nearly, the length of his body and stuck in the tree. I would shoot that same broached at another elk tomorrow, without hesitation. It slightly curled about 15-20% of one edge, that's it.
I'm a believer in the Shuttle T's now and it's all i'll shoot.