Well, I received an email from a kind individual that showed the correct position for the cams. When I balanced the cams to this position, the letoff changed significantly. In order to achieve the near 80% letoff from the factory, the bottom cam was quite a bit ahead of the top cam initially. This allows the draw peg (on the top cam) to contact later and thus increase the valley and percent letoff. The letoff dropped to 65% or less when I balanced the cams symmetrically, even though the post was at max letoff position.

So for my next queston, is it OK for the cams to be out of sync like this? I really would like 75% - 80% letoff, but the only way I can achieve it is by unbalancing the cams. I do gain 1/8" draw, which I am not happy about by doing this.

Are there other tricks out there for fine tuning letoff or draw length with this system? I know some of you are tempted to tell me to adjust the position of the draw stop, but remember I have to "untime" the cams just to get to 78% with the post maxed. I have found that tiny adjustments in the draw stop post make for large changes in letoff with small to moderate changes in draw length.