Hmm, essenbe not sure why you have to do that everytime. Not over tightening are you? Should just need to snug it up a little.
It happens to me on occasion, but not everytime.
I'm not sure what causes it, but I have a theory.
I think it may have something to do with pressure build up and heat. After a short time it tends to tighten a bit more. Or something along that line.
So if you have it snug, it should come off next time fairly easy.
My Russian needed the pliers to get the base of the tank earlier. But I did tighten it down pretty good. I thought it was leaking but it was just a error on my part.
Believe it or not, it really isn't that time consuming.
Although, the first couple times wrapping a coil can be a bit frustrating. But you'll pick it up real fast and it's pretty easy once you've done a couple times.
Once you get over that learning curve, takes about 10 minutes to wrap a coil and wick it.
That coil will be good for 2 weeks or longer. Unless you just want to change it. The wick (just cotton) can be changed when you swap flavor or starts loosing its flavor. Same flavor, that wick will be good at least a week.
The reason I say easier, is if you want to change flavors, it simply empty tank and rinse it.
Do a Dry burn. (Fire the coil with no wick to burn off debris)
Now, if you change flavors a few times a day then yea, it can get time consuming I suppose. 5-10 minutes or so each time.
If you change your mind, do it again. That piece of cotton for a wick only costs you a couple pennys by the time its all said and done.