I sure did Dave, I would not even think about selling/promoting this clutch if i wasent 100% possitive it worked great. I had it on my bike for a decent amount of time with no problems, but as you know i put the overide tranny along with the lock-out in my bike so testing on my bike obviously is over on this clutch without a lock-out, but i still have the same clutch with the lock-out and no problems, but we cannot go by that due to the lock-out now. But it has been tested on other bikes as well and has held up great so far. 3 of my buddys that i ride with all have them in their bikes which i fit the bill on so I can see how it performed before i started selling them, and out of those bikes the weakest bike is a stock jug full drag, so i'd say it's a worthy clutch. I have sold many on ebay as well as a few to some members on everything2stroke and no complaints as of yet. Again though Dave, all i was stated was my opinion on this and at the time i posted i though he had a 421 cub, so i assumed a lock-out would be the way to go for him, i wish i had listened to you in the first place and did the overide and lock-out like you told me to, and I even admitted to you on the phone that you were right.