Has anybody tried a Hayden M6 tension in their 1200 custom? And if so, did you re-use the original primary cover gasket? Not ever having it off, I'm not sure what type of gasket they use. The derby cover has a rubber gasket, and I re-used it with no problems when I installed her easy pull clutch kit. I re-used the gasket on my Deuce and it worked just fine, but I'd like to hear from those that have been there, and done that. Thanks in advance.