300/440/550 which prop??

Not looking to drop tons of coins in a gang of props, anybody have some insight on what prop may be the closest to what i would need for the following setup/conditions....
88 550 PP, west cost pipe, 44sbn, A/M head @ 155psi, 140lb. rider, (may go to an intake reed or SX motor swap down the line but not any time soon).
I realize this may sound dumb, but i'm wanting to FL east coast surf ride(mushy), no BF/BR's just a little slash and hopefully tiny airs w/re entry.
My initial thoughts were a 15* or the 13/18. But i have found a lot of conflicting reviews/feedback/comments of the 13/18.
And NO, i'm not ready to buy a SJ, so the "get a SJ" is not gonna happen. I feel challenged...... so many say these are soo hard to ride so i have a goal.... i want to get decent on this hull first before moving to another.
 
I run a 15 degree in my 550 sx and love it. I know the 15 degree prop is what most people run because it has all around great low mid high range. You wont be doing 50 mph on it but its going to have plenty of acceleration in the surf.
 
Top Bottom