Top coil is ok u have to roll it every now and then, they have a cpl different ohm coils, I've had the 30 for awhile. I wish I would have went w the kanger pro 3.
Primetimevapes.com has some awesome Vapes! I have several I use they are full of flavor and never get old! Freedomsmoke has some good ones too, I look for flavor art it is the best i think, Italians do it right from cars to flavoring for e cigs...