Hoyt claims there are no timing issues with the camand half. I have the hoyt xtec and love it but I have to disagree. I just recently took mine to fix the poundage(a previous post) and my pro shop checked the timing of the cams. I asked about this, wondering the same thing as you. He told me about a guy that shoots semi pro for hoyt, this guy said the hoyt cam and half shoots best with the top cam out just slightly, meaning that at full draw the bottom cam hits the wall first. The boy who figured this out used the hooter shooter to come up with this opinion. I do not no to many details at this time, just that when it was in time it shot 5 inches low and with the top cam slightly out it hit dead on. I am not sure if this answered your question, but I hope it gave you some insight on the cam and half. I am sure some others will respond to your post. They may agree or dis agree.