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.
I was speaking of groups of arrows, not just one single arrow. Tournaments are shot with multiple arrows. I think most pros would proclaim "matched", tuned arrows to be far more important then the cam configuration.
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?
Each individual archer would know if his groups were noticably better with a particular cam type. A company couldn't pay him enough to go out and lose with an inferior set-up (for very long). I contend they shoot equally well with each type and are very comfortable going with who pays the most. If this is not true, then obviously Mathews has the best cam.