I deleted this last night because on second reading I thought it sounded too defensive and arrogant. The last thing I want to do is give the impression that I don't need or value advice. This board and the people on it have been more help to me than I can express, and I don't want anything I say to imply otherwise. Anyway, here it is again:
It is not a good idea for Jack to be thinking about his jump in technical terms at this point. His feel for his jump is just phenomenal right now, and talking about his technique in detail would inhibit that. The vault relies on kinesthetic awareness, not the spoken or written word. Unless what a coach says can be immediately transferred to a visual image or neuromuscular awareness, it is of limited value, and can mess things up that are already going well.
That said, I think there is no harm in talking about “why” Jack is doing certain things while not focusing too much on the “how” of his jump. If you want to read a detailed discussion of the theory behind Jack’s jump you can read my “Oklahoma Pole Vault Manifesto” that I posted some time ago.
The first thing to know about Jack’s jump, and this is scary, is that he is still developing. His vault is still very rough around the edges, but he will continue to get better as time goes by. There is a definite progression through stages in the development of this jump. Things that look like errors are often just stages that an athlete is passing through. If you pull up some of Jack’s jumps from last year and compare them to his jump now, you can see the direction of his development.
The first goal of a drive vault is to jump on very big poles. This means that an emphasis on hitting the box hard and staying behind the pole through the swing must be established. When I say big poles, I mean gigantic. I jumped on a 16’5” 16.4 (gripping 15’ 4”) at 138 pounds. Joe Dial jumped on a 17’ 4” 14.8 (gripping 15’10”) at 150 pounds. Jack is jumping on a 16’5” 13.5 (gripping 15’10”) at 175 pounds. We just got three 16’9” poles, the biggest of which is a 13.1, and he is going to need them. This is why I have left the wide grip alone for now. It is very hard for the hips to pass the pole too early with a wider grip. This sacrifices a little in his ability to get on his back, but it can still be done, and we gain something in consistency as he continues to go through poles. He has gone from a 15’ 180 to the poles he is on now in just two years, and he is still blowing through poles and needing bigger ones. When this is happening it is murder to come up short, ever. No matter what, Jack needs to hit the center of the pit on every jump. Notice how wide his top end is on the Ardmore jump. This is exactly what I want, and the wider grip helps this happen.
Also, as an athlete grips higher they need to widen their grip to maintain the angle of the bottom arm at the plant. This is essential to consistent timing as the grip gets higher. The great French vaulters used a wider grip than Jack has right now, and I saw Theirry Vigneron jump 19’4” with that grip. Jeff Hartwig’s grip was as wide as Jack’s when he Jumped 19’10” Jack’s grip is heading toward the 16’9” to 17’ range in the next year or so. Another issue is the weight of the poles. Jack is nowhere near as strong as he will be in the next few years. If he stays on track he should be somewhere between a 12.5 to 11.8. They have to put a lot more glass in a pole to make it that stiff. There is more difference between a 13.5 and a 12.5 than there is between a 14.5 and a 13.5. We may narrow his grip a tad in the next few weeks, for the reasons dj suggested, but its current width is the right one for the jumps that are coming.
As for his tuck, if you read my “Manifesto” you will see that I don’t believe it is an error with a drive vault. It is certainly an error with the Petrov model, but that is not the model Jack is following. Also, as his grip gets higher, the pole will bend more in the handle. This will put Jack’s chest farther in and his trail leg farther back automatically. His swing will also become more powerful, just through the natural development of his timing and strength. When this happens, the tuck will become less pronounced, and he will push off farther.
So, what I am trying to say is that Jack’s jump is still developing, and in my experience he is exactly at the place he should be. He has followed the phases that I went through as I learned this jump almost exactly. The difference is that Jack is developing much more quickly than I did. This is also one of the reasons I have been so conservative with Jack’s progress. I wanted to make sure he was solid with one thing before we moved to another.
Last year for instance, he was coming down on a lot of bars, but I insisted that his standards be as far back as possible, except in meets where he needed to make a bar. In practice I kept his standards 95 cm back, and I would not bring them in. This was frustrating, but it forced Jack to move the pole first and go after the bar second, an essential timing sequence for a drive vault. I caught some flack from other coaches for this, but there was a method to my madness, and I’m glad I did not give up on it.
Lastly, I helped Jack shape his vault into the technique that Joe and I used out of necessity. I did not know the Petrov model well enough to teach it when I started with Jack, so I went with what I knew best. I am absolutely certain that Petrov is the best model in terms of ease to learn, teach, and develop. I use it exclusively with beginners now. I am, however, still convinced that the Oklahoma drive vault can more than hold its own if done properly. It is just much, much, more difficult to learn. Joe jumped 19’6” with a 15’9” grip. Jack will grip well over 16’9” before all is said and done. If his jump mirrors ours exactly, factoring in a little more loss due to the entropy inherent in longer levers, it still equals a very, very high jump. I know this is all provisional and hasn’t happened yet, but Jack is on track for that kind of jumping, and I am doing my best to continue to set the foundation for the future.
Compare Jack’s jump to this one, and notice that my grip is almost as wide as jack’s is now, only on a smaller frame and a lower grip. This was at the stage of my development when all that mattered was getting on bigger poles. The amazing thing is that Jack has reached this point as a senior in high school and it took me till my senior year in college. The bar is 18’6.”
http://www.youtube.com/watch?v=qPHdlD8Gk4cThank you for the comments, I hope this clarifies where we are coming from.