The difference in effeciency believe me is slight. It's not only the dealers it's convenient for but also the owners.

Ever here of anyone needing to fine tune their draw a half inch?

Or ready to sell a bow but no Cams to fit the prospective buyer? It doesn't make the New buyer real eager to lay down $$$either.

I think thebottom line is it's cheaper tomanufacture Draw specific cams than module adjustable Cams, but then I'm sure No one would inconvenience their dealers or customers to save a few $$

Call it however you want. It is what it is

Dan