Swap out the ball with what? Some old red circle that weighs 156g, I've got two red measle, one black measle, Arcos2 measle, they all weigh within 1 gram of each other and play the same. The ProCup measle sure gets dirty more.
I didn’t have a FR until a trip to Austin 5 years ago when I couldn’t seem to get a 1P action match so I played in Skinny Bobs 9 ball tournament and happened to have a great night. My FR has been dropping ever since. The two US Open 1P tournaments I played in reported to FR.
I thought I’d like FR but I don’t. Seems like there’s still professional sandbaggers. They crawl out from under when the tournament money gets sky high.