Why dumb? Sorry, if opponent is skilled and not too slow, size does matters a lot. I for example had more problems to spar with not highly ranked HW boxer than with better ranked CW boxers. What he did? Normally just launched long range punches until I had closed distance. Btw most advantage he had over me was reach advantage. It isn't fun, he launch punches when you are closing distance and these aren't jabs. Dude smaller than Valuev but larger than Lewis. It is not fun and guy this day was approx 300 lbs with low fat. Low level boxer for forum posters.