Ya know......I 'm a thinking, that I have to agree with the poster here.
I think WGT should double check the rules ----or even call a PGA rules person to find out can a player use a different color ball from the same manufacturer ---and stats on the ball. This is a real good question. They play by PGA rules here, and I'm just too lazy to find out on my own.
But let's say your using a Nike ball ---you lose it--- it was your last one---and the only other Nike's you have left in your bag has different stats, of course in this case you cannot use those and will be moved back to starter balls.
But balls from the same mfg. --same stats--but just a difference in color should be allowed IMHO.