If you don't mind sacrificing some of the tube length, here is what I did.
Using a hack saw, I cut the tube about 1/2" from the atomizer end, then with cutters, I cut into the part of the tube left on the atomizer end with side cutters and basically pealed the tube off. This left the atomizer end in good shape.
I am using this to create my manual switch passthrough for my pen. I got it all together today but am having some kind of issue and ran out of time to get a meter and test it. Once resolved, I will post a thread of the results on the Mod forum with pictures.
-Paul