Guy almost always beat me at a nearby 3D course. He was a stout fella and shot 65#, w tapered carbons that were LESS than 8gpp. His bow was loud. Chrono showed 235 FPS.
I tried his arrow in my 55# Widow and got 221.
Bout rattled my fillings out No thanks. I'll take a quiet comfy 190 FPS thanks. Even my 48# Widow that was to be for 3D and hunting, was set up for hunting first, and then was to be run on foam.
Skinny strings, diff fletch, no silencers................could squeak a few FPS more out of a bow. Not gonna do it.