Search:

Right.
Ok then.

Imagine what he could do with a 20lbs.
And then you can see my point.
By the way, all cultures have their "Kwan Kune" myths.

Combat wise, a soldier would want the lightest and strongest (durable) weapon he could get his hands on.

Point being that an overly heavy "weapon" would be a training tool far before it would be considered a weapon for combat.
Regardless of how well and fast someone can use a 50lbs Kwan do, he would...

Irrelevant.
A lighter weapon is faster and as such, better in actual combat.
No matter how fast you can swing a heavy weapon, a lighter one would be applied faster and speed in edge weapons is THE...

Using a heavier than normal weapon to train with is pretty standard stuff.
Fighting with one is a sure way to get your hands cut off.