Ill only change them from where I start with the smallest set of jets (200 shot) and where I end up (400+ shot) during the tuning and testing of the controller. Once that is set up the controller will do the rest and the 400 shot...or whatever goes in...will stay there. So I wont have to change them much once everything is set. If I have the 500 shot pills in...I can use the contoller to start at 20% of the 500 shot (100hp) at say 3000 rpm...and then ramp to 80% (400 shot) by 7000 rpm. Or anywhere in between.