Completely agree with RR & Grog.
Are you seriously willing to risk another broken collarbone (or worse) for the price of a tyre? I understand the "let's see how far we can take this baby" joke, but think that the risk of a crash or nasty consequences following a blow out should be taken seriously.
I honestly don't think you should compromise your life for the sake of a joke or a few dollars on a new tyre.
Put it this way, I wouldn't want to be riding behind you unless you changed your tyre.
Please reconsider.