Hello; One little modification that I did on my Mid*star was to put cap strips on the ribs from the spar to the leading edge. I did this on the second one I built (and the third), to make the covering job easier, but I thought it made it fly better then the first one I built without them. You might consider this. Another little thing is the vertical stab really needs some triangle stock to strengthen it. I built it both ways, but prefer it strong. I should go and buy another one of these just to have the kit.