They're an irrelevance that you traditionally use to rib your mates. They just indicate how much you're leaning your bike and whether you favour braking before a corner or as you dive to the apex and so on. If you let it bother you or try to ride past where you're comfortable in an effort to reduce them then you're being silly and need to simply accept that you can't ride properly, you should walk everywhere.
Fixed it for you
pjm, I have little experience of EXP's, just getting used to them (1200 miles) on my Yam but I'm surprised that you are using more of the front than the back. Are you braking into corners or something? I'd be worried that I was going to loose the front at some point. Maybe it's the EXP's but every tyre I've ever ridden on the back goes to the edge before the front and my current EXP's are shaping up that way as well. Having said that the roads haven't exactly been warm and dry in the west of Scotland so I'm not yet pushing the envelope. Track day at Knockhill will sort that when it's a little warmer.

