There's been a very strange exception floating out there re: BFG T-T T/A ATs: the 20" size specifically for R2 has seemingly lacked 3PMSF AW tag but all other sizes have it. Is this really the case? Seems weird + stupid.
That said, I'm now seeing BFG T-T ‘T/A+’ on Tire Rack, so maybe R2 size...