I have a senitnel m16 hcigar clone, with an Igo-w I currently have a dual coil setup on that reads 1.06 ohms. In the sentinel I have an aw imr 18650 2000mah. Anyone recommend other coils or ohms I should be going for. It hits well but I know I can get more out of it. Upon arrival I had a single coil at 2.5 in the igo but that wasn't firing that well so I rebuilt it with a dual coil (my first dual coil build). Anyone with any and all information on any of these things is greatly appreciated 
