Hey Jeremy, I have tried a set and at HHR there was NO noticeable difference. However, I had a hard time getting the same tires to work at Planet (Last time they were open).
Last night i was on Pinks with Bomb 1 foams that are almost used up (soft)
and had a dash of "DEATH GRIP" on for good measure.
on my 4wh I never cleaned the tires all night and was hooked just the same.
tks for coming out, it was fun racin with ya