Just a thought....
Is it possible that - when you are done with your setup - you keep vaping with the same battery you did the setup with? If so, chances are your setup will not handle the full load of a fully charged battery. I always swap batteries as the last part of sorting hotspots.
My earlier points about 'angle' was poorly worded. Maybe this will be, too. I think was thinking of 'incline'. If you wrap your coils at a steep incline, they wraps will lose contact with the wick if you flatten them out when sorting hotspots or spacing.
Picture a spring. If squash it, the diameter increases slightly as the coils flatten. Strech it - coil angle increase and diameter decrease.