Bola,
The important factor that you seem to be totally ignoring in this discussion is the "feel" of the cue. A machine stroking the cue is not likely to report back on how it "felt" to hit the ball. Every pool player uses a cue. When they pick up a cue, they become a complex, interactive system for pool shooting. The feel of the hit provides feedback to the shooter, which influences *their* performance, which I'm sure we all agree is the most important part of that system. Lets look at some simple examples of things that make a huge difference in how a cue feels, but would likely provide absolutely no data to any scientific test or robot device:
balance: lets say I handed you a cue that had an *extreme* rear balance. You think that cue will perform as well for a given shooter as one that is balanced the way they like? Humans are pretty sensitive instruments...we can detect even small variations in balance. This make a very big difference in the delivery of the stroke, the feel of the hit, and perhaps most importantly the confidence that cue inspires in the hands.
wrap or wrapless: This makes a big difference to me. Lets say I hand you a cue with my new teflon grip. Slick as hell and falls out of your hands when you try to hold it. How well would you play with that? There's the extreme example again, but refer to the "humans are sensitive" idea.
We could list other things but I think you get the idea. Here is a *fact* for you: when I bought my 2nd cue (the first was a $96 Brunswick), I didn't know anything about cues or custom makers. I tried out a million production cues: Viking, Pechauer, McDermott, etc. I didn't really care for the hit of any of them. Then I hit with a couple of custom cues and immediately felt a clear difference. Remember, I was a D player and didn't know anything at the time...I had no preconceived notions about cues. Certainly had never heard of AZB. The customs I tried were plain jane cues, certainly not as "fancy" as some of the production cues I tried. No real placebo effect there. However, there was a certain quality, perhaps solidness or something, that I immediately recognized and preferred. Explain that please.
Are there decent production cues? Of course. The simple *fact* is that my experience says that on average a decent custom cue hits better than the average production cue. The net result of putting a cue in *my* hands that feels better to *me* is an improvement in overall performance, most noticeably with respect to speed control, but also many other aspects not worth going into.
KMRUNOUT
For starters, thanks for participating in this thread, even as opposition to my position - without resorting to childish flames. I appreciate it.
Earlier in this thread, I addressed the "feel" and "hit" issue. Those are highly subjective. I hope we can agree on that. What feels solid to one person, isn't to another. This is based on how different people perceive feedback from the cue differently.
However, the point I made was - how a cue feels to you, does not alter, whether it be enhance or degrade the CUES performance.
Certainly and without question it's balance, weight, wrap, dimensions all lead to YOU the player playing better. Even the subjective and impossible to quantify "hit" and "feel" can make you play better if it leads to you having a sufficient level of satisfaction with those qualities or if they convince you of being a quality that enhances performance.
The reason for this is because any time a player's personal preferences are met - they will obviously have greater comfort and familiarity as well as less distraction or discomfort.
That doesn't mean the quality production cue plays worse and it doesn't mean the custom plays better.
While you're 100% right that a pool playing robot would offer zero information about "hit" or "feel" ...that is the exact reason why a pool playing robot would be so valuable. Not only does it eliminate human error, but subjectiveness is also removed from the equation.
All that matters in determining whether or not a custom cue plays better is whether or not it exceeds the performance of quality custom cues through it's interaction with the cue ball.
What kind of criteria would constitute superior performance? Well, that's up to us the players. I can suggest a few things. Greater accuracy (consistency in driving the ball forward), more spin on cue ball, more cue ball speed for a given amount of energy used.....
Say a tough cut shot is set up with such a robot or machine. Is there a difference between the custom vs. the production in how consistently and accurately it can deliver the cue ball over the course of X number of shots? Is there a difference in how much speed the custom can generate in the cue ball? How about spin?
You see my point? The production cue might not "feel" or "hit" solid to you, but there's nothing wrong with it or inferior which would cause it to perform worse than a custom cue, nor is there anything superior about a custom cue to have it perform superior. Not unless someone can come here with some actual proof, or evidence or at least some kind of reasonable argument as to why the custom cue has superior performance. Then the question will be, in what form? Since how something performs isn't magic or voodoo, it has to be traced back to materials and construction. Something in the physical world.
I think some people get upset to hear their custom doesn't have some special undefinable properties about it that makes it play better. They shouldn't be. They have great cues that play very well and consistently. They are also custom tailored to their liking, which as I said for the reasons above, makes the playerplay better.
Preferences and comfort are factors separate from performance of the cue. Preferences and comfort have to do with player performance, a different factor entirely. An awful lot of people can't separate those two things in their mind.