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mikepage
10-27-2007, 01:27 PM
I thought some folks here might want to check out my youtube videos on various subjects

Sidespin: Squirt & Swerve
http://www.youtube.com/watch?v=mXJ7bDafTms

Double Hits, Push Shots & Frozen Balls
http://www.youtube.com/watch?v=rip8xwobksc

Aiming part 1
http://www.youtube.com/watch?v=bE1hnDmHhvc

Aiming part 2
http://www.youtube.com/watch?v=zg2_b2NpvnM

Sense & Nonsense of Cueball Draw
http://www.youtube.com/watch?v=ZqqakiKbhHI

Preshot Routine part 1
http://www.youtube.com/watch?v=HP5hLNkWjdo

Preshot Routine part 2
http://www.youtube.com/watch?v=y0hs4Ka1xMA

Ralph_Kramden
10-27-2007, 10:36 PM
I was watching your Youtube video Pool Sidespin - Squirt & Swerve Revisited and found it to be very interesting and informative.

I do however have a few questions about the video. I'm not going to dwell on the shots with an elevated cue but only shots that were made useing a level cue.

3 cues were used in the demonstration, one with a low squirt shaft (Predator 312), and two non low squirt shafts (a Gilbert and a Scrubbs).

I was noticing both the speed of the hits and also the straightness of the follow through on all hits. I also tried to notice the sidespin put on each shot that showed the amount of squirt.

My observations - The first ball hit with the Predator was hit with a level cue, straight follow thru, medium speed. There was very little squirt as one would expect with a low squirt cue.

The balls hit with the Gilbert cue were hit with a level cue as well. Then there was a difference. The stroke was not straight through at all. The cue tip finished at least two inches outside the line on the table. The shots were hit much harder and with much more sidespin. It looked like the balls were forced off line.

The balls hit with the Scubbs cue did impress me. My cueball weighs 6 ounces. My vise grips weigh 13.5 ounces, over twice as much as my cueball. It's only natural that the cueball would squirt to the side when clamped near the tip. These shots were hit with a level cue at medium speed with a lot of sidespin.

Moving the vise grips futher back on the Scrubbs cue made a big difference to the ball. The squirt then was almost as minimal as the low squirt que. I wondered how that could be. The ball told the story here. The striped ball had almost no sidespin as it got to the rail. If it were hit with the same force and sidespin as the balls hit with the Gilbert cue I think the results may have been different. Probably somewhat different for all cues concerned.

I'm not saying that your experiments are wrong or misleading. I do think that human error remains a fact though. These type experiments really need to be put to test useing calibrated equipment. I've seen golf clubs advertised that hit the ball 40 yards further than any other with no slice. Videos of people claiming that they did so. Put to the real test useing the calibrated 'Iron Byron' hitting machine shows that they are no better.

Would you do the same comparisons useing a machine that sends the cue on the same line, with the same speed, with the ball in the same location so it has the same speed and sidespin? It would make me and the other 'doubting Thomas's' much happier and more convinced.

All your videos are very good and I applaud you for your effort.

mikepage
10-28-2007, 10:35 AM
Thanks for the comments.

First a confession, the cue with the vice grips wasn't really a Scruggs ;-).

You point out that when I change from the Predator to the Gilbert to demonstrate squirt, I actually hit the ball much harder and with perhaps more sidespin. That was intentional. I wasn't trying to do any kind of comparison of the cues; rather I was just trying to illustrate what I'd said earlier about squirt--that it sent the cueball in a straight line angled away from the stick line in the direction opposite to the sidespin.

You said that on those harder shots I followed through less and that the tip ended off to the side of the sidespin. Please don't tell the stroke instructors that frequent this forum about this ;-). Remember the tip on these shots starts out already a half inch on one side of the line. If it ends up further in that direction, that's my bad stroke. Note though that the squirt you see is real. That is, this stroke problem if anything would change the aim in the opposite direction.


Finally you point out that when I hit the ball with the "Scruggs" with the vice grip 10 or 12 inches back, that I used less sidespin than for some of the other shots. I agree with that. Looking at the video, for many of the sidespin shots, the cueball went straight down the table and bounced back toward the side pocket. For that one shot, on the other hand, it bounced back to one diamond past the side pocket, i.e., less side spin.

Please be aware that what I was really trying to do here is illustrate some ideas. These were not carefully controlled experiments. On the other hand, I knew what I wanted to illustrate because I have in the past done more extensive tests that would be boring on a youtube video. That is, I've carefully moved the vice grips back one inch at a time doing several shots each time to see where on this cue the added mass had an effect and where it didn't.

Also, as far as getting less sidespin on that last stroke, please remember that I was stroking a cue that had a vice grip attached *right* where I would want to put my bridge hand.

Again, thanks for your comments.

Ralph_Kramden
10-28-2007, 01:09 PM
I wasn't trying to put you on the spot. /ccboard/images/graemlins/blush.gif Just telling my observations from from what I saw while watching the video. Like I said.. it was interesting. Thanks for sharing the information.

Jal
10-28-2007, 02:53 PM
Mike,

Being on dialup , thus far I've only looked at the sidespin/squirt/swerve video, which I thought was well done and illustrates the principles quite clearly. The shrinking triangles were a novel way of approaching the idea of a pivot point.

Looking forward to downloading the rest of them as time allows.

Jim

dr_dave
10-28-2007, 05:25 PM
Mike,

Excellent videos! Thank you for sharing the links with us. I wish these videos were available in the past. Many debates and discussions on this forum could have benefited from your illustrations and descriptions.

FYI, I have lots of online instructional articles (http://billiards.colostate.edu/bd_articles/index.html) that support many of your arguments and provide more illustrations and examples. Specifically, see my January-July '06 article dealing with the draw shot, and my current series of articles (starting in August '07) dealing with squirt and swerve. You might also find my stroke "best practices" document (http://billiards.colostate.edu/resources/stroke_best_practices.pdf) useful and pertinent. Finally, you might be interested in the thread highlight links under "aiming" here (http://billiards.colostate.edu/threads.html), in light of your aiming videos.

Keep up the good work and please continue to share your work with us.

I wish your videos were available before I wrote my articles. I would have liked to have refered BD readers to them. Maybe I can do this in future articles.

Regards,
Dave

<blockquote><font class="small">Quote mikepage:</font><hr> I thought some folks here might want to check out my youtube videos on various subjects

Sidespin: Squirt &amp; Swerve
http://www.youtube.com/watch?v=mXJ7bDafTms

Double Hits, Push Shots &amp; Frozen Balls
http://www.youtube.com/watch?v=rip8xwobksc

Aiming part 1
http://www.youtube.com/watch?v=bE1hnDmHhvc

Aiming part 2
http://www.youtube.com/watch?v=zg2_b2NpvnM

Sense &amp; Nonsense of Cueball Draw
http://www.youtube.com/watch?v=ZqqakiKbhHI

Preshot Routine part 1
http://www.youtube.com/watch?v=HP5hLNkWjdo

Preshot Routine part 2
http://www.youtube.com/watch?v=y0hs4Ka1xMA <hr /></blockquote>