We run JR Purple, love the Axiom on tracks below a 48 tire, okay in the 48-52 area, crap shoot above that. Below a 48 it is on par or better than anything else out there, national events in the SE are never below a 52, even had track this year where out of wrapper pinks were the fastest thing on the track.
From all indications the Except has taken care of that and has much better drive off the corners.