With gravity set to 0.16 and velocity set at 3.20, the defaults, setting Link->Jump to 1 gave about 1 tile, setting it to 2 gave about 26 pixels of jumping, setting it to 3 gave me about a 54 or so pixel jump, setting it to 4 gave me about 6 and a half tiles (about 104 pixels) of jumping, and setting it to 5 gave me 8, possibly more, tiles of jumping. I am using ZQ/Zc 2.50 Build 28. Not sure if I have 2.50.1 or one of the RC's, though.