More thrust yes. But the model will work best with a specific prop that fits the flying profile.

You want more pitch to make the model fly faster and less pitch to make the prop bite better at low speeds and hovering. Where to set the pitch is up to how you fly and what prop the engine is happy with.

I'd start with a 15 or 16 x 6 and go from there. The diameter with the lower pitch will give more bite and still let the engine operate in the proper rev range (I gather 9000 is the proper range). Fine tune the sizes and rpms from there. Don't be afraid to try lots of different brands and sizes.

On the fun fly forum they were also talking about using wood props. Being lighter they let the engine spool up faster for better reactions during critical hovering maneuvers.