While I am not anywhere near a good enough shooter to contribute here, I will throw in my experiences to see if they are valid to others. Since a big form flaw of mine is how hard I pull into the "wall", I have seen a lot of issues in this area. I really noticed a difference in where shots were going with hard dual cams with a lot of letoff. With a Bowtech Pro 38 DC, I was getting high/low shots, and decided to creep tune according to what has been posted here. The bow ended up hitting the same horizontal line when the top cam was 1 twist tightened from the most solid stop. That bow shot fantastic like that, never should have sold it. The Pro 40 Wheely and the Patriot Dually were very sensitive to creeping, and I never got them the way I wanted them. Wasn't patient enough. I have always had good luck with CPS being pretty forgiving of creep, probably the reason I keep coming back to them. On various singles, I have not found a way to creep tune them, but Vaportrail's web site suggests that the same effect can be obtained by tiller tuning a single. Mike Cooper (JAVI) had an excellent article on creep tuning the Cam and a Half system that had been a sticky on Archery Talk for a while, and was also posted on Pearson's site. It is slightly different than the dual cam advice posted here already.