Give the new atty a chance to break in. Usually by the third fill up, it starts to settle in.got mine today. nice device, my first time using a 510 and its pretty good. Lots of vapor, which seems to increase the effect of my 24mg juice, I can't constantly puff this thing like I can my 901s and 401s.
However, I'm not getting as strong a throat hit or flavor. Could be the 510 needs more breaking in