Iv'e gotten into checking out the various coil and wicking types and i'm tryin to get the most of these kayfuns. I run a high vg (think 80%). Coil materials i currently have are 28 & 26 kanthal and cotton for wicking. I have been interested in other wick material and have been looking into silica. I like my vape to fire quick and hard. I've been testing the Little Boy rda and its alright but i think i rather the tank style or possibly a box with the bottle of juice in it (really have only seen pics so not for positive on the workings or pros-cons functionality or anything. Oh yeah while on the subject if there is a person that knows about the boxes I am very interested in them and will be building a lil parallel 18500 box and would love an opportunity to talk with someone about the types of and pros and cons. I've spent many sleepless nights researching vape and this is one of the hardest subjects to dig info on i tell ya lol