hey, now to the forum, not new to vaping. i know this is not the place to post this, but this is omy first post. anyway just wondering if anyone else has had any problems with the red oak line. every time i refill a cartomizer with red oak it seems to burn the polyfill, almost instantly. however when i refill with JC i am able to refill about 5-6 times before the polyfill starts burn. so i started to use my blu with the red oak refilling the carts, i figured since the heat is not directly on the polyfill it should not burn it. i would blow out the atty every night to get any excess gunk out, but the vapor production seemed to drop with in 2 weeks. again didn't have this problem with the atty that i used with just JC. after repeated soaks in hot water and PGA with very small change in vapor production. i decided to dissect my blu atty and see what was going on. i cut the bridge off to get a good look at the heating coil. but i could not see it. it was completely gunked up. actulay had to pick at the coil with a push pin to get the gunk off. soak in PGA, pick some gunk off, soak in PGA, pick some gunk off... you get the idea. anyway, i got it all clean and i can just drip straght on the coil, plus i can see the coil, so i can pick off any gunk before it gets out of had like before. i was just wondering if anyone has had the same problem with the red oak line. the flavors i vaped were Wisconsin Frost, and TC.