NMRA Coyote Stock and Factory Stock classes are like the wild west for diaphragm clutches. On one end of the scale you have the custom adjustable Black Magic clutches with different centrifugal levers/weights, a range of diaphragm springs, and choices of just about any compound sintered iron disc. Pretty much everything Cale can do within the confines of a diaphragm design to mimic the performance of a Long style adjustable clutch. On the other end of the scale you have guys running off the shelf "Spec 2" style pressure plates and organic discs. The iron setups last 80+ runs. Off the shelf organic is good for about 17-18 runs. With the iron setups, the inserts are usually swapped out with the discs. With the organic, the disc may be worn out but the flywheel/PP see hardly any wear. Both iron and organic are equally capable of winning on any given day.
The basic "war" is between the Black Magic "wheelspeed" camp and most everyone else that uses the 'tamer to dead hook. The wheelspeed clutch expert guys call the 'tamer a "clutch crutch" cheat that takes away their hard earned advantage. The dead hook guys just feel it levels the playing field. The wheelspeed guys usually qualify near the top, but the dead hooking 'tamer guys took home the big check at every event this year.
Banter like this long running series of memes is pretty common in the closed/hidden facebook groups...
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Grant
