Ok, so I have read
through the entire thread at this point and figured I would throw in my experience. I got the 19 v2 with both heads from ExhaleVapors. I immediately removed the spring and screw from the stock top cap, but left the spring and screw on the Nzonic head. With the screw and spring removed, the 18350 will not fire. With the spring in place, it will tear into your
batteries.
My button was glued on, so I soaked it for a little over 1 hour in a shot glass full of 91% alcohol. I made sure to depress the switch a few times, with the button on the bottom of the glass, to make sure as much of the alcohol got to the button as possible. If no more bubbles come up, it should be full. I pulled it out and drained all of the alcohol out of it. I then used a pair of needle nosed pliers on the magnet, and a larger set of pliers on the button. The magnet did not fair too well, but there are no marks on the button. They came apart quite easily using this process.
I am not concerned with the magnet as I never liked the "thunk" with which it connects and plan on making this a magnetic switch once I get the ring magnets ordered; so I removed it by heat. Using the large pair of pliers I had used on the button, I held the brass center pin and started heating it with the girlfriends crazy kitchen torch (it had butane). I heated it for about 30 seconds and then dropped it into cool water. Hissing, but no pop. I then added ice cubes to the water and did it again for about the same 30 seconds (looked like those CG scenes of the moon capsules on re-entry). Once again, hiss, but no pop. On the third try, I heated it for at least 1 minute 30 seconds. The magnet popped out as soon as it hit the water.
Hope that helps anyone still fighting with the button and magnet
