the common response i'm getting is to just go off the center marks. apparently the cam gears are interchangeable, and will not all line up straight across. if you look at the gears, you can see the left notch is in the peak of the tooth, and the right is in the valley of the groove, so this makes sense. IIRC, Trevor and i lined up the outer marks, so i'm still thinking both gears mightve been a half tooth off. stay tuned and we'll see how it runs after this.