I have RF G2 and all 5 add on's or about $350.00 worth, I love it, I have had no problems at all, BUT I’m about to sell it eBay because I can’t seam to write plane files and Knife Edge will not work with us and give us a version of G2 that is more friendly to program, maybe it’s just me but I’m really frustrated with my inability to write realistic plane files. My last attempt was with full up cad plans and a my actual airplane to measure, I have an Excel spread sheet of that airplane with every single component in grams right down to what the covering adds to each part. It is a profile so I used the Extra Special as a base plane. It will barley fly, my problem is if I have to fake the parameters of the airplane to get it fly then shouldn’t the product be called Almost Real Flight, does any one else have problems writing plane files as I admit even when I impute to exact measurements they don’t work for me. Has any one had similar problems writing files in Aero Fly Pro? LeeU