I also have the Great planes version. The Fabric looks much better then the plastic covering on the H9. The H9 does have a 2 piece wing so if space is limited to get the model to the field then that is a plus. I have a OS 70 SII on mine and it works very well with wheels and floats. If you never plan on floats and scale flying is all you will do with it then the 56 should work fine.