On the thread about choosing between SHW and FW, someone wrote this:
"That's the problem, they're too weak to hit hard."
There were a couple other comments about that as well. This is a fucking myth, plain and simple. Kid KO's big lightweights despite weighing in at 145 lbs. Takaya, Palling, Pulver, Hominick, Morkevicius, Skliaudys. All good strikers with KO power. They all have the ability to KO you with one shot. Perhaps not Hominick, but everyone else on that list does.
In boxing, the #1 power puncher in the sport right now fights at 130 lbs. Edwin Valero. 20 fights, 20 wins, 20 KO's. He won his first 18 all in the first round, and has only been past round 2 once. Not even Mike Tyson could match that kind of KO record.
Small guys can hit, too.