MamboFats Active member Dec 21, 2021 #1 Hi all, don't really how to choose a title for this. Can anybody tell me what the purpose is of the cutaway arc on the inside of the rubber? Maybe in earlier times there was a bulge on the subrail ? Does anyone know? thx for the input ... Alain
Hi all, don't really how to choose a title for this. Can anybody tell me what the purpose is of the cutaway arc on the inside of the rubber? Maybe in earlier times there was a bulge on the subrail ? Does anyone know? thx for the input ... Alain
fastone371 Certifiable Silver Member Dec 22, 2021 #2 My guess and its only a guess is that it changes the rebound speed of the ball off of the rail.