My standing vert was about 27 inches when I started lifting seriously in the winter(I had weak legs but good recruitment). Today I did several standing 2 footed jumps onto a 41 inch box. Not sure how much of a gain that is but I sure as hell couldn't have done it before. I'm figuring out how to train better now (thanks to coolcolj and others on this board) and I'm expecting even more and faster gains soon.