In my opinion +15 is about as low as you should go on the VX, maybe +10, but definitely not 0 or any negatives, please.
If you want to see what - offset looks like talk to tom4bren. I would not suggest it at all. In fact if you go past the +15 that I have I think it starts to look tacky, but that is just my opinion, some people like the look. Here is a sample of negative offset on the VX:
http://www.vehicross.info/gallery/sh...72/ppuser/2699
http://www.vehicross.info/gallery/sh...39/ppuser/2699