ahhh, it may be the VG causing wicking issues. try to water-down your liquid, one drop at a time, in a small 5ml bottle. try 3-4 drops of destiled water, per 2.5 to 5ml of your heavy VG e-liquid, the water MAY halp w/the wickin issues. ALSO, before u take a hit, u can try taking a hit w/out pressing the fire-button on ur mod, this will SUCK yer liquid into the coil-chamber. u shud see bubblez after doin this. GL with this issue, please feel free to continue asking Q's and feel-free to PM me with any questions/issues, for this & in the future. I'm here to help ya, bro. <3 welcome to ECF, welcome to vaping. ENJOY your vape journey!