I know this has been asked before but can't seem to find it. So i just got my first ViVi Nova 2.5's today, and immediately switched from my DCT 1.5ohm to the 1.8ohm head and poured the juice from the DCT to the Vivi. Well wirked great got great TH, but the flavor was really plasticy tasting. I said ok used it for a while, and finally said this can't be right. Soooo i switched to a 2.8 head and same thing suprisingly really great TH but plasticy flavor. I am using an older e-Power 18650 the one without the ego threads. The only other batts i have are ego 650mAh. No twists. Will this go away or did i burn two heads right away. I even dripped juice onto the coils till the wick looked clearish.