You the man... when I finally looked those up (RPM part no.80420) they look like a good approximation of what I'm talking about. So, go on, is everything great with these? Do they last forever? What kind of washer setup do you use at the shock body bottom? Can you safely go with some pretty stiff springs using these? Details, please! (as you can tell, pretty excited about the idea of these things, just wondering about the execution)