I don't see him popping it before he was *sure* he was gonna pull off whatever stunt he plans on attempting... But he damn sure isn't gonna go to jail, either. So if he could manage to take that sucker before he's apprehended (best case scenario for him at this point?) it would allow him to go out on his own terms more or less.

That's my prediction. And, not to brag, but my Breaking Bad predictions have been right almost .0000000000000003% of the time.