The Drunken Fools

Good Day Drunken Fools!

I was sketching yesterday, under the heat, and ended up revamping Spike a little. I really like the end result and I feel my art is really evolving since I started to draw in 2008.
Now, the dilemma, current storyline:

The Fools are now a Long Form Comic and the current story may end up having 45-50 pages. My first feeling is to wait until the end of the story before applying the new design. Well, that is, IF Spike returns under his human form, of course

What do you think? In the past, it was easy to switch design as I was improving my art, I was doing short gags or stories.
Since I am planning a book for early 2011 and The current story will be the main story of the book, I still feel I shouldn’t change the style/design in the middle of it.

What do you think? What should I do?

Oh and… what do you think of the new design? lol

Cheers!
Antoine