If you're willing to pay the $8 to experiment, get an APC 13x4W. They label it as a "3D Fun Fly" and charge much more than a "Sport" prop, but I really like mine.

I have the 61 Pro on a Global Right Flyer 60 and the 13x4W works great. My engine has a good low idle, but would float forever with the 11x7. The flatter prop lets it slow down for landings; I just have to learn to do them.