The spring is physically in the pin, but there is no "spring" to it when I try and compress it. Make sense? I looked for rubber bands and don't have any, but thought about sticking the pin in the freezer rather than boiling it. I tried holding onto the threaded part w/ tweezers over a paper towel, and the wider rim part w/ needle nose pliers over a paper towel, to try and twist it apart. No luck.
I just found that Vapourart has it in stock. I'm just gonna buy another. It's $50 but what the hell, aggro pay
Thanks everyone for your advice and help. If I somehow get this sucker back to working, I'll at least have a spare!