To add my little grain of salt as I attempt to introduce my view of the world in the cyberspace yet again :
Well there is velocity training, and there is well the I rip my muscles training, kinda strange custom...
When you actually break your muscle to gain volume you are indeed stocking up on solid, "health giving" mytochondria spelling but you are also creating huge amounts of scar tissue. So you become like... a big scar who is probably more solid than most people... and what do we like to be solid for, well thats obvious.
Now even in the brute force test of an ultimate championship, if a big scarred guy faces a velocity trained lets say... a shaolin monk who btw only eat rice and veggies and don't look like he can pack a punch at all and probably has seminal stones blocking his, eww, why did you get me to think about this.
The monk would definately have more vital energy and mastery and win.
So I think the powerball way of training is much more superior to lifting muscle tearing weights, and I am a big proponent (is that sayable?) of flexibility training... as in if your belly is too 6-packed, you can't do abdominal breathing in your hips, and well thats kinda sad you didn't understand that belly muscles do not only pull inwards, but can also be trained outwards.
I know I'm freskish...