The only mods you need to do with this plane is go with the recommended Saito FA-100 engine. Out of the box the US 60 will do all of the 3D to some degree. After getting use to the plane and its peculiarities you can plan around with your TX programming mixes and CG to enhance certain maneuvers.

Only physical mod I would and will perform is replacing the landing gear with a taller set so that I can move up to a 15x6 prop.