Basic difference is that the blades (hence, "airfoil") are 180 degrees from the standard tractor prop.

To install the pusher prop correctly the writing or marks (convex or curved side) on the prop MUST face the engine (front of the aircraft).

My pusher experience has been OK but I find that the selection of pusher props is not the greatest - especially when you get into the .60 size and above.

My experience.

Dan