[weedburner]

One of the points of my post about using the 'tamer was that even an organic street clutch can last a full season and win a championship while using it. There's no problem with using a sintered iron disc which lasts quite a bit longer, but iron needs less static clamp pressure than what you would find in the typical aftermarket diaphragm pressure plate. For an iron disc, it's better to use a Long style PP with an appropriate range of adjustable static.

Quite a bit less expensive, easier to tune, with more performance potential vs a SoftLok.

Like I said before, if you like people taking pictures of your car in action, screaming wheels-up launches are the way to go. Sponsors like the attention as well. The more exciting the cars are to watch, the easier it will be to put paying customers in the grandstand seats. Much better path to improving payouts vs increasing your entry fees.