Here's the deal.... I have been vaping about a month. Been using ego batteries have alot of ce4,5 clearos. Some leak, etc. but I have been sampling lots of juices--flavors and brands-- to see what I like and I bought tanks for each and if I don't like the juice, I do a clean and burn and reuse for another sample.... After reviews, I have purchased the kanger Protank--Pyrex--mainly for the citrus and cinnamon favors, and a few of the Kanger Evod tanks. Also ordered extra atomizers for both. Can I clean tank tank and atomizer/wick to try different favors or switch juices or do I have o change out head/atty each time? These tanks are alot more expensive compared to the deals i found on ce4+ clearos!! I would assume answers and comments would be the same for both kanger tanks since they are bottom wick tanks and the main difference other than materials and size is the evod tank replacement heads are short and the protank heads are long, from what I see. Please give me any feedback as I transition away from clearos. I hear the flavor and vape is much better withe the evod and protank. Please comment!!