I believe in the 640 model when it comes to straight poling but when I jumps on a bending pole I have a lot more time and driving the chest up and through until I feel pressure seems to be key!
Now, I hope I'm not misquoting Roman here but he explained to me this summer that a vaulter has 1.4 seconds (roughly) to complete a jump. And the thing is you don't have time. If you try and block or stretch and delay the jump in anyway, how will you make up that time? The answer is simple, you won't. Has anyone on this board ever had a jump or coached a kid who had a jump when they "blew through" and hit the crossbar on the way up or kicked it off, but then went up a pole and couldn't quite move the pole as well, came down on the bar? Or if a practice went under the bungee? Is it possible that instead of moving up a pole you only needed to pull and get to the top of the pole quicker?
It was funny because a week before meeting with Roman I was talking with a friend about a certain high school jumper who went 17’1” last year. The kid was about 5’9” 140 and gripped 14’6” on a 15’ 170 to jump 17’1”. The kid didn’t have a great take-off and the kid wasn’t all that fast. However my buddy (who hopefully will also comment on this) mentioned he saw a similarity between this high school vaulter and Cornelius Warmerdam. Both pulled, a lot. I didn’t know what to think about it because I had been teaching kids not pull since I began coaching.
Then I met Roman, and everything changed. He gave me a great scenario. He said, “Imagine if I gave you a stick and told you to jump over a bush. What would you do?” I had the most dumbfounded look on my face. Then Roman asked, “Would you get your hands up, would you stretch?” Well think about that would you? No way. So we delved deeper and things started to make sense. Roman also told me that he expects any healthy young boy to be able to grip 15’. Keep in mind he did not say a stud, specimen, or once in a lifetime athlete. He is talking about your general high school kid who works hard.
Well that brings me back to the high school kid I mentioned earlier. He was 5’9” 140, not fast and gripped 14’6”, well his take off wasn’t great and that is why he wasn’t gripping 15’, an average healthy young boy not special. However he was pushing 3’3” (14’6”-8”=13’10” pr is 17’1”-13’10”=3’3”). That is special, but he did it because he was pulling.
Another thing Roman spoke about was the fact that guys during the stiff pole era were pushing 4’, if you did have more time on a bending pole, or if it did have some kind of catapult effect wouldn’t people be able to push 6’ then? The only thing a bending pole allows you to do is grip higher, the principles of the jump remain the same. Look at video of guys in the stiff pole era, they do not extend their hands way above their heads and they pull a lot.