Well if you don't know your specific release specs . . . 50/5/40 for most bowlers works well. But, this is a general layout that was studied by Mo Pinel during testing of the Guru. I've used it for a group of customers after talking to Mo. It works very well. With slower ball speed, you'll want to change the pin to pap or angle ratios. The best thing you can do, is seek the recommendation of a qualified pro shop technician in your area.
