Hamilton vs Flopro impellers

[tmack]

Hay there, was just wondering on everyone?s thought, I am running a 773, 19 degree Scott bullet, and was running 2 x 22 degree Hamilton brass impellers behind it. I have replaced them with a fine pitch(19 degree) stainless flopro in the middle and a coarse(22 degree) in the back. I have seemed to have lost a heap of revs tho. My question is, will the fine pitch(19 degree) flopro push more water than the 22 degree brass Hamilton? The flopro blades are quite a bit longer than the brass Hamilton one?s