This whole thing is getting weirder and weirder, but I guess Don was the source of confusion here. He was a good screamer, a bit generic perhaps but entertaining nevertheless. Ron was more versatile and unique, although I do understand some could find him irritating and too operatic for brutal Thrash. Don's voice, on the other hand, could have been too limited for the complexity of their later material. Overall I'll go with Ron and hope to seem him do the reunion.