If the Hooter Shooter demonstrates one thing, it's that out-of-tune bows can shoot tuned arrows into the same hole, when the distance on each shot is identical.
The HS can shoot ANY arrow into the same hole, does not matter if it's tuned for the bow or if it is really bent and way out of the spine range.
As for pro's shooting like a Hooter Shooter, well not all pros shoot to the same level. A lower level pro should benefit from the better system if there was one. Why can't this be demonstrated?
How? You realize how much time that the pros put into tuning their particular setup? It becomes an extension of their body, and they have become intimately familiar with how it feels and how it's balanced. How would you look at a line of shooters and know that Shooter A's ability is not quite up to Shooter B's ability, but Shooter A has a slightly better cam system so his scores are fairly close to Shooter B?
I don't believe anyone has ever demonstrated that a particular cam system is more accurate than another, when both are timed and tuned properly.
And you never will. If a machine can be the ultimate in accuracy with ANY bow, how do you propose that it be demostrated which cam system is more accurate in the hands of an archer? An archer of what skill level? At what range? With what arrows? And who decides which arrows are best to use with that bow? Who decides what drawlength or form the archer should have? Maybe the back wall of one cam system lends itself to better shooting to an archer that prefers that vs. a soft wall?
There are just too many variables to PROVE that a one cam system is inherently more accurate and/or better than another. All you can do is find what works best for YOU, your style, you likes, your form, and your wallet.
