The cloth resting point? You mean the point where the invisible ghost ball would rest on the cloth if it were an actual real physical object?
You think that this is SO EASY.
Well here is an experiment you can do. And let's use GMT's premise that being off by a human hair's width will result in a failed shot - (unless subconsciously adjusted for) -
Take a piece of paper, a ball, and a fine tip sharpie.
Put a dot anywhere on the paper. Put the ball on that dot. now take your sharpie an put dots all around the ball at what you think is the Ghost Ball center.
Should be an easy exercise since you are sitting at your desk, with all the time in the world, not standing above the table with a cue stick in your hand under pressure to shoot.
When you are done pick up the ball and measure the distance from the original dot to the estimated dots and see how well you were able to measure JUST the distance alone. This doesn't even take into account being able to accurately place the invisible ball along the right line which SOME people can't consistently do with a REAL ball.
Here a video of me trying this experiment ONCE and only once. Using the same measuring tool that would be available to me if I were at the table, my brain. Watch it and see how I did. I bet none of you who claim Ghost Ball as the greatest way to aim will even try it and put up your results.
http://www.youtube.com/watch?v=d-L4QMNiVxk
Only 3 of the 11 dots were even within .15" (that's a fifteenth of an inch) of 2.25" from the center of the object ball. The rest were off by an average of a quarter inch.
Let's see how well you can do it.
And by the way Dave. I make your three shots with no adjustment in alignment, bridge length, or pivot using CTE. Just like with GHOST BALL I don't figure the angles or the offsets. I look, bend down, pivot, and shoot.
John:
First, EXCELLENT post -- nicely done, both here in the write-up, as well as in the video. The point you make is very compelling for anyone thinking they can just aim at a spot on the cloth, in order to be accurate to within GetMeThere's tolerances. There are a few problems with this "purist" approach though:
1. GetMeThere is wrong about the accuracy required in POOL. Snooker, yes -- because of the size ratio of the balls to the pockets (premium accuracy is required), as well as the much greater distances than pool. However, in pool, there's a reason why they use the term "contact patch" -- it's not a point, but rather a contact "area." This area is very small, yes, but it's not a point. Because of the design of the pockets in pool, you can almost completely miss the pocket (i.e. contact the cushion near the pocket) and still pocket the ball. (Of course this point is only applicable for the corner pockets, less so with the side pockets, but I digress.) Thus, in pool, you can be fairly "off" in your accuracy such that you don't hit the precise "point" on the cloth or the object ball, but yet still score.
2. Many folks who describe themselves as using ghost ball to aim (myself included) actually use a combination of techniques to do checks and balances. When I line up the shot, I first check to see the contact point on the object ball -- I'll "get behind" the object ball, in-line with the pocket, to see that contact point. Then, I'll envision the ghost ball at that location. Keeping my eyes fixated on that, I'll then move behind the cue ball, and envision how much of the object ball is "eclipsed" by the ghost ball (i.e. fractional aiming). I then bend down into the shot -- all the while never taking my eyes off this vision I just created. Only until I begin my practice strokes, do I engage my eye pattern (i.e. cue ball, object ball / ghost ball pair, cue ball, object ball / ghost ball pair, etc. -- back and forth, but mainly focusing on and aiming at the ghost ball, dead center [goes back to that "whack-a-mole" game where I'm shooting the mole dead-center in the face]). Finally, I deliver the cue. Although I say I'm a pure ghostballer, I actually use a combination of techniques for checks and balances. If I were to use *only* the contact point on the cloth, as your video demonstrated, I'd most likely be off on a lot of shots.
3. The most accurate ball pocketers in the world are snooker players, without a doubt. (That's not to say snooker players "automatically translate to being better players at pool than pool players" -- let's get that one out of the way, right now, before someone jumps on me.) I'm just saying snooker players are much more accurate in pocketing than pool players. I don't think anyone will argue against this, when they see a Ronnie O'Sullivan, or Neil Robertson, or Shaun Murphy, et al.
thumping the back of those small pockets at incredible distances. With that foundation established, it might prove helpful to note that amongst this school of pocketing accuracy, only one aiming system is ever taught -- ghostball (or "dummy ball" as the Brits like to call it). It's "called" ghostball, but it actually includes the checks and balances I described above -- the fractional ball aiming I mentioned above.
You are correct, John, that the human can't possibly accurately envision the center of an imaginary object down to a *point*, as one would do with a Sharpie marker. That's
not what ghost ball is. The term "contact patch" (with "patch" being the key operative word) is a dead-giveaway to not only the area of contact on the object ball, but also on the cloth itself. Even then, with that slight relaxation of accuracy implied by the word "patch," the other checks and balances come into play to
hone the final "fire control solution" before delivering the cue.
Your point is not lost, however, that ghostball has its limitations -- we are human, afterall. If we were accurate beings, pool would've never caught on as a "fun" activity. Assuming we learn the "basics" of delivering the cue accurately, and of the basics of pattern play (i.e. speed and spin of the cue ball), pocketing itself would be a "no brainer" and we'd all be clearing the table every time -- never (or rarely) missing. How long would pool have lasted as a popular activity if that were true? Obviously, it isn't.
It was a great video, and a good point made, but it overlooked a lot of things.
Oh, and don't get me wrong -- I'm not a CTE basher. As I've always said, "ya go what ya gotta do to pocket the ball." If CTE is more conducive to the shooter, then so be it. If the "ghostball technique" (which includes those checks and balances I talked about) is more conducive to the shooter, then so be it.
What gets my goard, though, is when someone tells me that the technique I adopted -- the "ghostball technique" (checks and balances included) -- is "wrong", or that I'd be a much better player ("I'd go up 'x' number of balls") if I adopted this "other" technique. You know, the old sales pitch. Then, I'll go get the 12-gauge and metamorphose into "kill the wabbit" mode.
-Sean