@Kent C: you seem to have tried quite a few EgoT-specific stuff. About the tanks ..........
I'm using the blue ones and there are times when the vapor tastes like plastic especially on the LR "A" atty, which I can only assume is from the tank.
Have you tried the black ones? Somewhere I seem to have read that they are "improved" versions. The "how" part of being improved was not stated though.
Since I'm also considering the "B" type, would you say the tanks don't have that plastic taste on the vapor?
Thanks.
p.s. OP, sorry for the thread jack.