hey guys, i have always been a oxidized wick kind of guy. always pre oxidize, roll, burn & quench 3x's then 2x's juice burn. this aways has been working awesome on both my DID'S & aga-t. i would say that this process of oxidizing my wicks would take me around 15 minutes or so. just recieved an ac-9 4 days ago and used my usual set-up for this device, didnt work right. i was getting a kind of burnt taste, but mostly no taste compared to my other gennys. i was not getting any hot spots what so ever, and the wick seemed to be getting plenty of juice to it. regardless, i tried 270 mesh, 325, and 400 instead of the 500 i normally use, not only did i try these different meshes i also tried big center holed wicks, small center hole wicks, thin walled, thick walled etc. nothing worked, still burnt. i then tried 30g ,32g instead of the normal 28g, no difference. i then tried higher resistances, 1.2 all the way to 2.0 ohms, instead of my normal 0.08 to 1.0 ohms. no difference. in the end i over oxidized my wick, probably spent twice the time as i usually do. BINGO, that was the problem. i was getting the right vapor and everything with the ac-9 just a bad flavor. i was not getting any hotspots and no error messages with the provari but still getting no flavor. everything was working fine except the flavor issue and it all was to do with the amount of oxidation of the wick. the DID & aga must not be as picky with this issue or the ac-9 just needs to be more oxidized. now i have heard of the method of no oxidation, to me thats hard to believe, but anyway not sure if this info is valuable to anyone, but just wanted to bring a little info to the table.