that could be the case, but they still performed at a substandard level to me no matter what I put them through..
anyways.
I'd have to say my favorite tire combo right now would be rt615's in the front and dirrezzas in the rear. mainly because the dirrezzas offer superb control, and give off a butt-load of smoke, which always makes drifting more enjoyable.
but for drag/launching I'd reccommend some RS2's if you're looking for a street tire. but the thing is, in my area, we have a speed shop that thorws out tires w/ tons of tread left on them, so we can usually get a good pair of RA-1's or similar R compound tires for free, so hooking up usually isn't an issue. a lot of guys that I know base what size wheels they buy off of what is most common out back of the shop(s). hahah