I gotta say, I've been finding myself dripping on my 510 more and more lately. For me, it is a HUGE difference in quality hits, and you get quite a few before a re-drip!
Also, you earlier mentioned frustrations over the cheaper ones. I actually agree with you there. My first one was a cheapo mall type and it was frustrating and I constantly got
juice in my mouth. I suspect that it is a problem with those types of models (not to mention not being used to the s-l-o-w drags required of e-cigs). Other models (510 as well as many others, I assume) have a different cart design which
mostly eliminates that problem unless you have a flooded atty. (Just my opinion on this stuff as a noob who has learned a lot over the past couple weeks).