Muzzy, my 06 tribute has the same problem. the top cam is so close that there is a very slight mark from it on the limb. I can slide a piece of paper thru it but thats about it.

I took mine to the shop and they said they would send it right back to bowtech. This was in the middle of hunting season and I didnt want to give up my only bow. The bow was shooting dead-on. I actually killed two deer after I noticed the problem. now that hunting season is over i cant bring myself to send the bow in because its shooting so well.

Let me know how yours turns out.