Sorry to disagree but pool is nothing like chess when speaking of the physical requirements. In chess you have to decide on your move and you don't even have to lift a finger as anyone can make that move exactly as you told them to without the slightest understanding of WHY you made it.
Try this exercise. Go to the YouTube video where Efren runs nine racks. Set up each rack and start from Efren's first shot after the break. Now you have Efren Reyes telling what to shoot each shot. Can you run those racks? If not why not? Is it because you don't have Efren's physical abilities? Because you don't have a cue that performs like Efren's or a combination of both?
I say it's a combination of both with some environment thrown in as well. In other words we don't yet know the performance limits of cues but we do know that cues perform differently. What "best" performance is has not yet been determined. Predator has advertised that it's about accuracy and that comes down to radial consistency and minimal deflection, i.e. the ball goes where it was aimed with the least amount of deviation as possible.
Other people might say that making cues which spin the ball more with less effort is desirable (Predator claims that their cues do this as well).
I don't know. It seems as if cues have evolved significantly into the proper shape and balance and construction for world class play. But if it's all a numbers game who is to say that a "better" cue wouldn't reduce the amount of misses in the pro game to such a degree that we see a difference in performance among the pros. That is after all the purpose of any innovation in equipment right? To enhance personal performance.
I agree completely