Trying to figure what the best ZNA 50 clone is and where to buy it. From what I read the wotofo is the better one but not really finding where they are sold. Are all the cloupor versions bad? I really only want it for the 50w and it looks awesome. Would look amazing with my Origen rda and would love to run it with my 18500 batteries. My t8 will be here Wednesday but it's kinda big and I want something a little smaller. The zna's on fast tech are two different brands and I'm unsure what the other one is. Am I correct thinking the wotofo uses the yihi chip?