Is there somewhere I can go to read up on these props or can someone give me some input on them.  Lookin at a SS 4 blade 25 pitch.  Thanks

Not sure what you're wanting to know.  They are basically a four baded raker.  The size is going to be determined by the boat and motor your running.   In general you run a gade one number larger than a raker.  If you're running a 24" raker now, you would run a 25" gade.  I generally find I have to run a gade about 1/2" deeper than a raker.  

I feel the same way about the gade as I do the raker.  They are ok/good props out of the box but to realy get one right, it has to be reworked by a custom prop guy that know's his stuff. This guy is one of the best hammers in the buisness http://www.bogerprops.com/.   As with any four blade prop, the boat is a little more stable and handles a little better at WOT.  Normally the four blade gade will be a couple of mph slower than a raker but with the right work done on it, that can be changed.  At the same time, I think a properly built raker still outperform a custom gade so I only run rakers.  I do have a couple of gades but just never run them.