Snatch critique request

[Bryan T]

So I'm home tonight and trying to figure out why I loose my snatches behind me when I attempt weights around 90% of my max. I have only been training for a few months so I would like to solve my problem before it becomes a habit. Here's some videos

meet 50 almost missed made http://vimeo.com/17997941
meet 54 miss http://vimeo.com/17997953
side view http://www.youtube.com/watch?v=CGws9IQBXnc

I am confident with both my pulls, the 54 miss is 3 kilos above my personal record. I think my form is correct, you can hear the bar snap up when it meets my naval area. I'm thinking I'm not finishing correctly. Possibly not getting my head through the bar fast enough and far enough to get that bar in the right position? Possibly take a wider grip?

Any thoughts would help, thank you.

[Emily Mattes]

It is a little difficult to tell on the "miss" video, but it looks like you aren't keeping the weight close during the second pull. From the third video it also looks like you are starting your third pull too soon (you start the "shrug-under" before finishing hip extension). If your strength is greater than your lifts, these could possibly lead to your looping the bar over and behind.

For the first, keep your back tight. This does not mean just holding an arch, but flex your lats to actively keep the bar close to your body, and draw your shoulder blade together. Think of how you have to flex your lats during an RDL in order to keep the bar from swinging in front of you. You want to do the same thing the whole way through the lift.

For the second, focus on the hip finish, and only the hip finish. Don't worry on getting under the bar, just on extending your hips. Pulls can help your timing. High-hang work helps some people, but I've found it's more likely to teach beginners to cut their pull, your mileage may vary.

[Andrew Wilson]

Looks great to me, grip width is perfect. Just need some more training time and more repetitions for that nervous system to get faster. If the bar misses backwards, it may be that the hips are tapping into the bar in the jump, but not much of that was in your snatches.

[Spencer Mackay]

Just a general note Bryan, along the lines of what Andrew has just said, you seem relatively young with long arms and legs. This is exactly where performing the Olympic lifts is ideal because it will help the neural co-ordination of your limbs to no end. This will prepare you so well for future development. Keep at it.