there are 2 main reasons for heating the wire..
pre heating ( torching it) removes the stiffness ( anneals) to allow for easier forming of the coil
dry burning/glowing the coil ( after it is in the atty) causes oxidation to occur which creates an "insulation" to coat the wire to keep the coils that touch each other from becoming a short path making the coil have less ohms than designed to have
Before this post, I thought burning the wire was to get the coating off. I have limited experience with such things in my past and, if you didn't burn your screen, it interfered with your hit (that's as much detail as you're getting...lol)!!! Now that I've tried to make some coils with the wire, I'm convinced that
I need to find my old torch heads and go get a bottle of propane
The dry burn, as you put it, the guy explained was for a different reason. He said it was to make sure the coil was heating evenly. I watched a video and that guy had made a dual coil, which is my goal, and he said it was to make sure both sides were heating evenly. If not, one side may have gotten an extra wrap or there might have been some space between a couple wraps.
I watched another video and that guy grabbed some wick, folded it in half, and wrapped wire around it only 3X and called it good. I am clueless here but I'm guessing this was a sub ohm build....??
I know that my ohms cannot be lower than .8 for my MVP 2.0 but what if I want to use the RDA on my 1300 mAh spinner?? What should the ohms be for that?
I know I have a lot of questions but one thing I'm FINALLY learning in this life is that it's OK not to know and to ask those who do know and knowledge is not gained, if one is not actively seeking the answers