I am a big fan of lateral left for rightys, you would be surprised the number of people I have grip Mo's fitting tubes and how naturally they are pitched that way.  I see a lot of bowlers come in complaining of hanging up only to see their pitches be lateral right and forward

 

If you have not seen mo's perfomance fitting guide, I would recommend it at least as a starting point, I use it to start then tweek on my customers, most go away with a ball and show back up the following week with the rest of their arsenal asking that they all be changed to the new fit

Sep last year... Will send you a PM later. Yeah, you were right all along... I should have tried out Switch grips years ago... along with a few thumb options...