I just trued two sets of the original treaded front tires and did not have a problem. I took it slow, did not use any lighter fluid. It is not necessary to completely erase the tread; you only need to true until the tire is round. My preference is to run these tires, but we can vote by Saturday about allowing the Slot.it 15X8 standard aluminum front wheel with Slot.it Zero Grips as options. Please vote either in this forum or at the race on Saturday.
Also, I believe that Thunderslot no longer uses the #4-40 sets screw and instead uses the M2.5X3 grub screws for everything. Care must be taken with rear wheels to see which screw the wheels take. My earlier ones were #4-40 but my white kit came with all M2.5X3 screws, which fit the wheels that came with the kit.
Russell