Thanx for the insight guys. I'm a noob and don't currently have a VV or even a decent breakout box to go by, but my rough calcs say that I'm good vaping somewhere around 4.5 to 5 watts with a top feed clearomizer and the right juice. So while that does put me right at the edge of this chip in boost mode, since I've got a freebie on the way if I have the other components lying around maybe I'll try it out and report back.
In the short month that I've been vaping, I'm finding enough variables with this stuff to keep me guessing/experimenting for years. What have you guys found as your 'sweet spot' in watts? I'm guessing that it is highly dependent on the juice & vaporization method? For example, I seem to see a big difference with the same juice between a top feed, bottom feed, and a filled cart all with the same rough ohms & volt combination. (Bearing in mind that I've only been using 3.7v 'e-cig' batts so far).