Punched up the Guru Mighty this past Friday night and got to put it to use last night:
190 (operator issues with timing), 300, 258 = 748
Once I got my feet issues corrected I was able to really see how good this ball is. I used my favorite drill (45 x 5-9/16 x 70 pin down) and just as Phil and Mo promised the Mighty gave me a little more length with a stronger more continous motion on the big end.
Thanks again to Phil, Mo, and our entire Team @ Radical and Bryan Viator @ Striking Results Pro Shop for convincing me to go to the Thumb Mold great recommendation.