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Article & Video Discussion / Re: How much can vert really be improved?
« on: June 12, 2012, 03:18:22 am »I only know the rule of the middle finger.
on a roll...
steven-miller's point is true, though. obviously kellyb is not saying everyone will get exactly 30% gains regardless of starting point. it's just a general estimate for what someone in the normal range of ability can expect. although if you have a natural 10" jump, you should probably lose some weight and try again. and if you have a natural 35" jump, fuck you.