Debating on bigger DOT tire for no-prep race

[Super73]

I am sure some of you have seen the new ET Street R tire. They have a 32X17.50-15LT which ironically is basically the same as their ET Drag 32.0/14.0-15ST. Both are made of the M5 compound which has seemed to be the choice of guys running 10.5w.

Tire-------------------------------Measure Wheel – Section – Tread – Cir
ET Drag 32.0/14.0-15ST ----14 ------------------- 17.1 ------ 14.2 --- 100
ET ST R 32X17.50-15LT ---- 14 ------------------- 17.9 ------ 14.4 --- 101

I spoke to MT yesterday and they said unlike the old ET Street, the new ET Street R is 95% as stiff as a stiff side wall slick.


I am thinking about putting this on the truck to run a no prep race at the beginning of October. It retains DOT. Any thoughts?