It only makes sense that bows will work best for a draw length specific cam. That's why people find that with modules, the lower on the module you are...the slightly less performance you will get at peak. But I agree, the difference is likely so slim in todays bows it might not be much different.

Hoyt went from modules to draw specific cams, and this year went back to modules.

IMO, it has more to do with ease for dealers than anything. Dealers would have to order 5-7 bows of the same model to stock all necessary draw lengths, where as with modules only 2-3 bows would cover any DL. Helps them keep bows in stock for ANY customer, without HUMONGOUS overhead...not to mention having all the bows left over at the end of the year when the next years line ups come out and they have to offload them at discounted prices to make room. Draw specific cams leave dealers with two choices, having HUGE overhead and stocking alot of bows, or keeping only the 29" 70# cookie cutter bows stock and making most customers wait to order theirs in...possibly loosing a customer who is buying on a whim and wants a bow NOW. Really leaves them in a predicament.

Modules are for the dealers, not the shooters. (not that they are bad for the shooters)