BSR has been a great help in getting our SPEC program up and running with great success at Racing City Hobbies (RCH). John is a great guy and his product is second to none. He has a great selection of compounds to choose from. We chose four compounds for our racers to use, green and or gold rears, & silver right front green left front they have worked out great. Flat track Calandra carpet 115 foot groove.
After some research , I agree that the BSR's are a great bang for the buck .
Don't quote me ,, but it seems as if Trinity is giving up on their Spec tire line as since they switched from TRC " big mistake " I don't believe their new supplier is too excited about making any Spec tires , too small a market.