ya i gave up on the protank. rebuilt or not. cotton worked for me for a day then went back to crap taste burnt, muted flavor. have literally spent hrs trying to get this thing to be as good as people say it is. picked up a iclear30 and it blows the protank out of the water. even better then the vivi's. they wick fantastically and really no need to tip it until it gets ever so close to the bottom of the tank. by that time i refill anyway. try the iclear30 way better hands down.
best part is, they dont need to be modified... open the box, wash the parts (not the coil head, you can if you want) dry it pop juice in give it a go. no need to switch to smaller heads, no need to rebuild the heads, no need to use cotton none of that nonsense. if you buy something and spend your hard earned cash on it, it should come working like its suppose to. thats like buying a new car, the engine runs very rough, someone telling you to rebuild it and it will run smoother lol. doesnt vibe with me. even though i like modding things, i want it to work from the start as advertised.