The R is a much better tire especially for a stick car. That's the thing about running a stick car with drag raidals is you cannot afford to have one component that may be a weak link or it will bite you in the ***. I like your idea of going to a hoosier quick time pro, my thought is you don't have a big enough tire to have good success with a drag radial. Fwiw I am building a stick/drag radial car and I threw the kitchen sink at it lol. I ended up with a 295/65/15 et street R to try to get the most traction, we will be finding out how well it does in a couple weeks.
