I have been putting together my Viper 500 tonight. I found that when I was putting in my servo tray that it was slightly to narrow to make a good joint. I had to glue thin strips of balsa on the ends to make the tray slightly wider. I also have done my usuall trick of replacing the hardware with uprated gear. All this got me thinking. I have put together or in the stages of putting together 4 ARF's in the past year or two. All of them have needed some modifying to make them work correctly. My cloud dancer needed modifying of the undercarrage mounts to make them strong enough, my seamonster needed me to make my own servo tray because mine was missing. My seagull edge needed a lot of work to get the wing joint neat and strong and my viper needed the servo tray mod. All these planes needed more work than I have listed but you get the idea. I almost always replace the hardware and fuel tank in any ARF.
My question is has anyone put together an ARF 100% as per the plans and did not require even the slightest mod to make it work / fit better. I would be very interested to hear the results.