I was actually referring to guys who have legitimate knockout power and can finish a fight on any punch.

I sparred one such fellow lately. I can hit myself so it was pretty interesting. Being an inter club spar it was fairly heated, but the tactic I employed was to stick to his chest and get my body work off, If he shyed away I'd go to the chin before getting back in and grabbing and holding if he started to flurrry.

I've always prided myself on my chin, but the realistaion that when he hit me I was seeing white lights was quite scary. As I said I can hit myself and I pegged him a few and came out looking better, but it was quite disconcerting to have my vision obscured as a result of a clean punch.