One of the biggest differences from a cost standpoint is the price of tires. We had some friends that were running Kenyons, they were laying out some serious jack for 4 new tires every race. To be competitive you had to have new tires......and that ain't cheap.

With the mini sprints I can get through an entire season without changing the LF and maybe only changing the RF once of twice. A set of rear tires can usually get me through three to 4 race events depending on the track conditions.