Sarcastically, is that diagram pictured from above the ball or is it a view from the side of the ball looking into the rail?
I hope you see that difference.
On what axis are you trying to demonstrate? Hit a ball TOO low or TOO high & you can mis your position by not controlling the vertical spin on the ball.
You & your diagram are exhibiting one dimension & one aspect which also exhibits one dimensional thinking in this discussion & perhaps in actual play.
No offense but some of you are starting to make me feel like Patrick Johnson.
As I have said in another post, I think the collective 'you' protest TOO much & makes me wonder why. Remember it is not just me that says that the tip is arcing down, up, down but Bob Jewitt's chart comparing tip movement for both still & dropped elbow strokes. Maybe you & the rest should be arguing with Mr. Jewitt.
randyg made an assertion that the tip moves 'level'/straight for several inches in a fixed elbow pendulum stroke. I asked how because I don't see it & Bob Jewitt's charts do not support that assertion. NO PBIA instructor has given any explanation as to how that assertion can be true, bio-mechanically or otherwise. Renfro/Chris (apparently he has switched from the pendulum after wasting many years) has offered the best possibility in saying that a certain grip action might be the answer, but if so it is in the opposite direction of the pendulum swing & would be unnatural to the montra of letting the cue do the work & would also need to be timed & coordinated. So...would that be more simple than to just let the elbow drop when it wants to to keep the cue moving straight?
As I have also said once before, it seems to me that maybe you me like you & Larry are trying to talk yourselves out of 'buyers remorse' more than anything else. Keep in mind that I have received quite a few PMs stating just how much money & time that some have wasted to the point of near total frustration regard the 'pendulum stroke' as taught to them by a certified instructor. I understand that nothing can be 100% successful, but am just pointing out that the pendulum stroke was not as effective for them as they wanted their stroke to be so they switched.
As it always should be, different strokes for different folks. If the pendulum stroke works for you or anyone else & you are happy with it, fine. Stay with it. I just feel that the different parameters should be available for each individual so that they can make their own determination.
Best Wishes,
Rick
As Neil already pointed out, there's a difference between level and straight.
I can draw or follow a ball full table without dropping my elbow. So answer me this. How?
And no offense, but you're not even close to being on the same level as PJ when it comes to pool, and I actually like you a lot more than him.