David 42, some heat will breakdown thred-locker. But not so much to destroy the guts of the regulator....blow dryer? soldering iron held to the spot? Or try the other regulator, maybe it ain't so stuck?
So far, I've had more experience thinking than I've had brewing....you don't think they are mutually exclusive, do you?
72 batches so far,
48 wine, mostly Loquat, peach, plum, prickly pear
23 beers and ciders
1 Tequila, from a prickly pear wine experiment that didn't work. I call it "Prickly Heat"