PoleVaultPower.com

After you get inverted, try to hang back there a little bit so you can pull and turn in time with the bend's release. It should pop you up better.

A teammate of mine does the same thing. If you have that problem it in your popups and warmups too, simply saying "plant...straight...up," with each word on your 3 last lefts, it actually helps a lot. Just keeps you consciously thinking about the plant.