I use Blue Diamond for real serious matches. Then Triangle and then Masters in that order. I put a cue in the robot after shaping the tip. I chalked it real good 1 time with Blue Diamond and fired the robot with a tip and a half of right English. It miscued on the 26th shot. Did the same test several times with Triangle, Master, and Kamui. Triangle miscued at 24. Master miscued at 22-23. Kamui made a mess on my table and miscued at 23. I used the same cue with the same tip for all tests. The old chalk was wiped off and the tip reshaped before each was used. The reshaping was done on a precision lathe with a shaper that makes the tip exactly the same each and every time. I also tried the test with out shaping the tip every time. The results varied very little with Blue Diamond on top, Then Triangle. If I get some time I will video the tests again and put it on youtube and my website.