Freestyle impeller

[Garrett Burger]

I have a 701 in my bob haul, motor has a little work to it, stock pump, just trying to get the most out of this combo, what pitch impellers should I be looking at for freestyle

 

[Harbor]

Hooker 9/15 or 08+ stock prop

 

[Rushford_Ripper]

Had a hooker 9/15 in a limited BOB of mine, pulled hard in the short time I had it. Currently run a stock '08+ in my surf built fixed steer.
The 9/15 for your application is my choice!