I'll let you know if the SmokTech works any better. I would think the Vcore is your best bet so far if you can remove the wick and dry burn the coil.
Somebody is not kidding around here

You might be set for a couple of weeks...
The EVOD heads/coils can be cleaned, but you have to take the entire head apart. The T3 heads/coils are tougher to get to and maintain. I don't have a Protank yet (waiting, oh the waiting is killing me), but I have heard the EVOD heads work in the ProTank so they must be very similar. I would suggest trying the ProTank, but it would be best if you have the spare head handy just in case it gets gunked up.
ETA: You can unscrew the EVOD head from the base. Run the whole thing under hot tap water. Carefully pull the pin out of the top. In mine, there was one "flavor wick" laid on top. Lift that out and carefully set it aside. Do not lose it

. When you look down into the head, you should see a wick twisted a bit like a pretzel in there. I soaked that part of the head in vodka or PGA for a couple of hours, gently swishing a few times. Pull it out, and let it dry before you put it back together.
You can take the cleaning further, but this has worked for me so far. I didn't put Salted Caramel in my EVOD, though.