Folks at my local went through this years ago with f1/silvercan.
We were on foams and high grip carpet where every OUNCE of power
gained was noticeable.
I tried a lrp quantum 2,lrp qc3,novak gtx,novak spy, and a tekin fxr.
Hands down (for me) the lrp qc3 was faster with the gtx and fxr in a close
I don't know why...just was. Lap times on the same layout/setup were faster.
Unfortunatly... I toasted it...
They are hard to find for a reason.