Also, I know some people write off the McCallum win but I think that's rather a good win on RJJ's record.

McCallum was a fine technician (young, aspiring boxers should be studying tapes of this man) and boxers whose style has its foundation in technical soundness usually do well as old men. Technique is what let Toney do well more than 50 pounds above his natural weight class and it's what let Hopkins hand out a boxing lesson against a much younger man. It's what let McCallum go the distance with a prime(arguably) RJJ.