Got some Dalton weights, went 69.5 grams for my 850 NA, ride at 2000-3000 feet. Top end is perfect, 8400 then 8200, but the engagement rpm is 4700, way too high. I have 2 set screws inserted all the way to the tip. Wondering if I can place them near the heel of the weight to lower engagement and if they will stay there. My clutch spring is a 150-310.