I'm watching the More Proof dvd and theres been a few knives that have been made of 420 sub zero quenched, whatever that means and I was wondering if anybody has used any of them. I've notice that they have a few models in that type of steel being used and was wondering if they are worth the price. I know cold steel is a good brand as I've got a few of thier knives but when some mentions 420 it makes my blood run cold. Anybody play with their OSS and peacekeeper models in 420 I'm looking for something with a double edge that wont kill my pocket book.