I run the same toothed belt kit as that. From a different person but they are good. Slightly more whine than the PSD ones, also they are heavier than the PSD ones but won't wear the same. Don't think the weight difference will have any impact, i ran PSD ones and can't tell the difference. Actually prefer these ones, plus i haven't stripped any teeth on the belt which is a bonus. Still on the same belt since last april/may.