Sorry I haven't got back. Been working a lot. I took the top off of my I stick 100 and found a wire that had snapped when I over tightened the tank. Tried to solder it back but there's not enough metal left to get a good solder. So instead of having a temper tantrum at my age I just went and bought another one but gorilla glued the hell out of the top threads several times and don't overtighten the tank. So far so good. Really love the unit. Feels good in hand simple as hell to use. Thanks for getting back to me. Now I need to know where to get the best juice and is 50/50 the best?