need prop advice for a 38 Express Cruiser
 

I have a 05 38 fountain ec with 496 mag ho engines and bravo 3x drives. The props on it now are original, butlook like they have been touched up and have alot of cup added. I was thinking of changing to XR props, is this a good idea? How would this affect cruising speed, fuel economy, and top end? Would there be a better alternative to XR props?