I can also rock the limb back and forth by the cam enough to get rid of the limb twist/cam lean when the bow is at brace.
If you can do that, there is something definitely wrong. Find a reputable Bowtech dealer around, even if it requires a little driving to get to it. Have them check it over and contact Bowtech to make the repairs.
I'm seeing a very small amount of lean in mine, not much to worry about but its there. The important thing is this bow shoots like a dream for me and I haven't been this thoroughly happy with a bow in a long time.
Don't give up on this bow. If you can't find a dealer around, contact Bowtech directly and talk to someone. I'm sure they will take care of you.