my 2 month old v3's threads are almost gone... my UDCT still works, but nothing else that is not ego threaded will work. Thinking about trying to build my own ego to 510 adapter.. the ego-w head looks promising... if not, I'll be ordering a v5, and building a vamo box mod! then replacing the connector will be a breeze!
You might want to look at a ProTank Mini base. The threads for the coil are 510 threads. You would have to cut down the base to get the 510 end to make contact.