I finally went for it and upgraded from kayfun to enigma and I am loving the flavor from dripping but my problem is my MVP is not strong enough to give me a warm vape, it works great with one coil but of course I want 2 so I guess I need a powerful mod. I would like a box type mod I can carry at work with min 18 watts of power, I plan on sub ohming since I have come this far so I would like the safest batteries I can get, I have a mid level budget...any suggestions, sales anyone knows of? tks.