I just recently shot a 300 with my new RUMBLE. It was game 7 with the ball since returning from RENO. The drilling was too strong for out there but it is killing my local house shots. Best of all I shot 190 game 1 with another ball, made the change in the 1st frame of game 2 and threw the next 11. Team was winning convincingly so game #3 I tried 2 other lines and still shot 215. I love the Roto Grip line and will be throwing them more.
"If your not throwing Roto Grip...you're cheating yourself out of honor scores!"