Downcastnut wrote: Any feedback or drills I can do at home to help me to get 12' 6''?
Next time, try to vid your entire run. I suspect that there's some major improvements that can be made to your run and plant, but without seeing it, I can't advise.
Your plant/takeoff is quite a bit under. I can see the pole bend well before you jump off the ground. That's the most important thing for you to fix right how. Try to take off from directly under your top hand. If you do that, you'll be able to JUMP off the ground on takeoff ... rather than just letting the pole pick you off the ground, like you're doing now.
Also take a look at where your top hand is in relation to your head. It's quite far behind it. It should be almost directly above it. You need to fix that.
When you finally leave the ground, your body angle is backwards-leaning. It should be slightly forwards-leaning. Your lead leg is straight and your trail leg is bent. It should be the other way around ... lead leg bent at the knee (you need to DRIVE the lead knee forwards), and trail leg straight. The straight trail leg is needed in order to swing it as low and as powerfully as you can. But bending it at the knee, you shorten the radius of your trail leg swing, which causes you to lose a lot of power. To fix your body angle, you need to takeoff from further back, as I explained. This will be a MAJOR improvement to your technique!
You then swing to what's called the "dreaded V". That's when you get stuck in the "flatback" position with your hips low and your hands and feet high (the "V"). The problem with this position is that it's a passive position where you don't do much ... except hang on for dear life. You want to ... and you need to ... CONTINUALLY raise your hips ... but you don't know how - you're "stuck in the dreaded V".
The answer to this is to fix your run, pole drop, plant, takeoff, and downswing. This will give you a powerful upswing, and then you won't be stuck in the V. I don't mean to make it sound easy to fix - it's not. You need to work hard and work smart to improve your technique ... all the way from the run to the bottom half of your vault (everything up to but excluding the V). If you do that, then you won't be "stuck in the V". Instead, you'll be swinging upside down, and extending straight up your pole ... up and over 13-0 or more!
I suggest you search PVP for the various key words that I've given you here, and research the many threads that talk about these technical faults. Then look for the drills that are recommended to fix them.
Above all, start from the START of your run, and work your way forwards to the V. That's how to turn the V into a Petrov Model inversion/extension that will allow you to FLY over the bar!
You really need a brick-and-mortar coach to talk you thru all this. If you have a coach, discuss what I've advised with him, and get his feedback on it. If you don't have a coach, talk it up with your fellow vaulters - at your school and when you compete against other schools. Most vaulters will help you to improve ... it's a brotherly fraternity!
Kirk