I just go by the forward lean on my boots.. I want it form fitted. I wear DC's which usually has a little lean to begin with. I jib all the time with them but having little to no forward lean just gives me a bit better control on the landing and tricks
I always max my forward lean out... until I got UNION Bindings and now I back it off one notch.
NOTE: I once railed out on a tree hidden in the pow and it kicked off my forward lean adjuster. So when I got back on the hard pack it felt like my shit was broken. I CANNOT ride without forward lean. It feels so whack, like there is NO response.
When I tried out my new setup this year, I started with 0 lean. Board/bindings felt so unresponsive turning heelside. Kept dialing in more, till I had enough response. Ended up with 2 clicks front, 3 back on '09 Ride NRc.
As said prior, lean has plus' and minus' but its all personal preference. I used to ride a little forward lean but now I have none all together, its something new and I like it. Just constantly mess around with the lean if you want. Its easy to fix and you can find al kinds of comfort and if not its easy to change. My $0.02