Rats, I have neither a torch nor a vise... (the torch is probably a good thing, I have a very sweet but dumb cat who likes to "help" me work and would end up on fire immediately!)

Nothing is budging. I am going to go see if the LBS can spare someone to try and unstick them, or sell me a new pair. (These ones are not as good as the Dia Compes I swapped for them).