I love it with the inductor, I am gonna tell you how I would go about it before I tell you what I do!
Place the inductor tip on the tempest induction sleeve at an angle, I hit it until it starts to get red and keep an eye on the visual indicator; mine is a beta so be aware my results may not be yours. I stop 1 line before desired, I try to get a slight cherry on both sides (so basically heat the other side as soon as one side gets red). Keep the tip at an angle though, do not lay it flat against the tempest (I have broken a tip doing that..)
I suggest starting lower and slower, the inductor is crazy powerful. That being said I run mine on max lol and have a ready to go tempest in <20secs (maybe quicker, never timed it cos it's more than fast enough for me).
I personally don't care if my tempest head or any part of it is pretty, so I don't value or worry about discoloration so if your worried about that you may wanna see if anyone who shares those values has some input. My tempest head was discoloured from hard use long before I had an inductor, and I kinda appreciate that.. We did those miles together!