Erick,
Ok...here is the deal, if your flying off grass ditch the main gear doors and put larger (2 1/2") wheels on it (cant fit that size wheel with the doors) and at least a 1 3/4 nose, flys fine off grass with this setup. I was using robart gear (605's I think??) but wore them out and installed some rom air's I had sitting around. YS45 rear exhaust with a mac header and pipe strait down the inside of the fuse with the end pinched off and a turn-around as per CM suggestion. Servos are all standard ball bearing, no need for anything high torque here. You CANNOT tell this is a prop plane once in the air and performance is good. Takes some practice to land without nicking the prop and suggest you toss the tail skid supplied for a heavier one made from spring steel. Mine with the YS would have almost unlimited vertical and was clocked at JOD a few years back at 118 strait and level flight. Not a hard kit to build and teaches you how to glass if you have never done it before (watch the video supplied). IMHO it is a great flying plane at a great price but their customer service, well.... Their isnt any! Hope this helps...Todd