I'm finally back onto working on my vertical. I thought I would just concentrate on upperbody and putting some weight on my frame. Then I got sick and seriously lost about 4 inches on my vertical. I went from almost grabbing rim to coming up empty handed on every jump. But just last week I got up and rattled the rim with a one hand so that felt pretty damn good.

Btw is your vertical standing or running? and why don't you really want to dunk.