Second try at this........to show that it IS possible to get 2 different cut angles using the same perception/pivot, even when the CB/OB are the exact same distance from each other......with both eyes open.
Note: none of the diagrams are to exact scale.
I'm extremely right eye dominant. So when I try to put my tip on center CB, I'm actually slightly to the left. To me it looks like I'm on CCB, but I'm not. Because of my severe right eye dominance, I'm unknowingly looking at the CB at a slight angle. This was first pointed out to me by Dave Bollman......and then again a few years later by Stan Shuffett. Subsequent video analysis showed that my stroke swoops slightly to the right on my final forward stroke to compensate for this.....another thing I wasn't aware of doing. I'm positive that this was the reason I never won a US Open, lol JK :grin:.
Anyway, one day I was watching a Mike Page youtube video (he has some pretty good ones) where he says the best way to line up a near 90 degree cut is by sighting down the 2 contact points (edge to edge in this case). So I go to my table 15 feet away and set up a near 90 degree cut to the left. I address the shot and, knowing I'm right eye dominant, I close my left eye to ensure I'm right on the edge-to-edge line. To my surprise it didn't look right at all. I was confused. So with both eyes open I then closed my right eye and, surprised even more, I found I was then looking right down the edge-to-edge line.....with my left eye
.
So another thing that I didn't know about my game was, that even though I'm very right eye dominant, my brain can switch to the other eye when more beneficial. Many players do this without even knowing it, again with both eyes open. From one extreme to the other (90 degree cut to left - 90 degree cut to the right) the eyes can switch dominance......and can dial left/right all across that spectrum depending on the shot angle. The trick is to know how to use this to one's advantage - but that's another story (
3rd eye trainer). ......or ? Perfect Aim
Having said all that, now to the main point of this post.
View attachment 523307
Diagram #1 shows 3 shots - a straight-in (red ball), a near 90 degree cut to the right( blue ball), and a near 90 degree cut to the left (orange ball). The CB here is yellow. As you can see the player is using the right eye exclusively for the cut to the right and using the left eye exclusively for the cut to the left (when using one eye 90-100% for sighting it's just like having the other eye closed). For players that do this, all the shots in between these two extremes, the eyes will dial back and forth with a 50/50 for the straight-in. And when they get out to 75 - 100% one eye or the other, they start seeing the center of the CB at an angle relative to the shot line (shot line being the center of the CB to the center of the ghost ball). This is a problem because if wanting to use a center CB hit they're actually slightly off one way or the other which can cause unwanted spin and deflection resulting in a thick hit......again, that's another story.
View attachment 523308
Another way of illustrating this is in diagram #2. Here are another 3 shots. The middle ball is a dead bank across the corner, the left ball is a cut to the left side pocket, and the right ball is a cut to the right corner. The thing on all 3 of these shots is that they all share the exact same CB AND ghost ball positions. C1 is the CP-to-CP position for the cut to the left, C2 is the CP-to-CP position for the bank, and C3 is the CP-to-CP position for the cut to the right. See possible eye dominance noted for each shot. Note here, with the exact same head position and CB/ghost ball positions, the player would see different center CBs (and perhaps a different edge, too) on all 3 shots.
View attachment 523309
Now my last diagram (promise), #3. This shows another 3 shots. Left shot angle is the beginning of the 15 perceptions with an inside pivot. The right shot angle is the end of the 15 perceptions with an inside pivot. The middle shot is a tweener between the extremes of the 15 insides.The orange area is the ghost ball. Lets say for argument sake that all 3 shots are the exact same distance from each other. Keeping in mind all of the discussions about diagrams #1 and #2 above, as each shot becomes more acute to the left, the player (some players) left eye will become more
in charge or more involved or more dominant (without them even knowing it, just based on the different position on the 2X1 surface of the pool table) and they'll see a different center CB for all three shots (and perhaps a different edge, too).....which could give them a different cut angle even when they are using the same 15 inside for all 3 shots.
Does anyone get what I'm talking about here?
Anyway, like I said before in the other thread, this has not much of anything to do with CTE....and never discussed on any DVDs. It's just
ONE way of showing that, even with exact same distances and exact same perception/pivot, you can get different results in terms of cut angle. There are other ways
...... stay tuned, you won't want to miss it.
DTL
too much time on my hands