I am totally with you on using the new font for captions and the like- I can totally imagine it working really well that way. But it doesn't really look like a talking font, if you get my meaning. When reading comics, I think it's important that the font looks somewhat like talk, which is really hard to explain, but I think that a font with clear lines that also looks a bit like hand-writing, looks most as if it would come out of a mouth, you know. Am I being coherent at all? :D

Anyway, I'd stick to the old font, but the new one would be extremely nice for giving the comic a kind of medieval touch in the captions and such. :)

EDIT: Oh, I just realised that what I called the "old" font was in truth a digital lettering experiment as well (not really up-to-date, sorry!). Well, I've always loved your lettering before, but I guess if you want a more professional and clean look, then the second version is great, and closest to what you did before. My advice is pretty much, "go with it", always bearing in mind that readers are important, as well as their opinion and the legibility, but you have to be happy with the font and the feel of the comic as well!