Drag Racing Tech - drag radials

I have an extra set of Z06 Corvette rims 18 by 9.5, and was wondering what the opinion was about drag radials on that size rim? Is it worth it or should I be looking for a smaller rim?
Thanks to everyone in advance.

What kind of setup are you running? Auto/manual, power, etc. It may be in your sig but I can't see that on my phone.

15" is better-dont waste your $$$ on 18" drag tires.