For the wobbly back cover: Tiny piece of (what I've used) ductape in these corners next to the magnets, and gone is the wobble!
I got vtc4s in it, vaping on a parallel dual coil 11 wraps / 30gauge / 2.5mm diameter @ 0.55ohm at 70w After little time I do see my battery reducing. This way I won't be able to make it half a day I am guessing
Would this be the build causing the drain? The high wattage? I did set the proper capacity (23.31) in escribe.
Could be the vtc4s and their 2100mah that I'm using, could be that the people who say they manage to last more than a day use higher mah (and perhaps vape <40w)
Still lots of investigation to do with this kickass mod