I've seen that Kanger is phasing out the evod heads, instead going with the Protank coils for both... Not sure how I feel about this, I really like the draw on my evod, wouldn't want it any looser. I don't have a Protank, but everyone says that it is a lighter draw than the evod. Plus, my evod doesn't leak a drop through the center post, which.. (again, just from reading) does happen on Protanks at times when the tank starts to run low (ala the T3). Should I start hording evod coil packs now? Or am I just making something out of nothing? I have about 15 coils on hand, and I guess that the draw is related to the ID of the center post.... seems like the evod and PT center posts are interchangeable, so I guess I could swap them out if need be. Thoughts?