Well, it looks like I'll be right between those. My results from a 22" barrel:

50.0 Big Game with the 120 NBT, average of 3,023 fps.

50.0 Big Game with the 120 TSX, average of 3,042 fps

50.0 Big Game with the 120 TTSX, avg 3,029 fps.

Chronograph was 12' from muzzle.

“There are some who can live without wild things and some who cannot.”
ALDO LEOPOLD