Just got this mod and I can only get a few good pulls before it just won't fire any more. Using two Brillipower IMR18650's rated for 3100MAH and max 40A. My build is two five wrap Alien wire running about .3 ohms in Wismec Indestructible. The light gives about 10 slow blinks when pressing fire button followed by several fast blinks then goes off. Device does not shut down, just won't fire. Any tips suggestions? Sent from my iPhone using The Vapor Talk mobile app