Paul Thede with Race Tech had a saying years ago that is applicable here. You only know as good as you've ridden. Meaning if Tusk is as good as you know then that's the limit of your experience. So you really can't compare anything else until you've run it. I am in the category of anti Tusk. Yes I've run a complete Tusk clutch pack in my 09 YZ450. Initially it seem to shift fine, but then as time (and not a lot of time either, maybe 10 hours) wore on I started noticing notchy shifts and not full engagement and disengagement when the lever was pulled. After some TT research I decide I would try a full OEM setup. Poof, perfectly smooth shifting. I understand the cost difference with OEM clutch packs versus something like Tusk, but as stated before, you do get what you pay for. Just my 2 cents for what that's worth as someone who has run both Yamaha and Tusk clutch components.