I built my Carl Goldberg Chipmunk in the summer of 1992, it is without question, the finest radio control model i have ever owned. Flying out of our small dirt strip here in California, it has never let me down, yes all the previous posts on suggested mods to the landing gear blocks, and one servo per aileron suggestions are very true. My Chippy has had its fair share of subjection to dumb thumbs but fortunately as of this date, none serious enough to send it away for good. Its without a doubt my "Old Reliable" among the R.C. aircraft hangar that i have collected through the years. Everytime i go to the field i bring atleast two planes, my chippy is always one of them. Although i cant say much for the customer service ive experienced with Carl Goldberg Lately, i can say with good confidence that they sure did well with this kit and most likely can conclude they dont make them like they used to. My first motor was an O.S. 45, later to a Junky Super Tigre S75, and now it is at its sweetest these days with a Magnum .91 . I run Powermaster 15% and which allows me to rotate to vertical at the end of my strip every single time. I have long since converted myself to an ARF flyer these days, but dread the day, if she ever goes, I will be a kit builder again, and a Goldberg Chippy it will be.