i have a duraplane 20 with a GMS .40.......what a "brick!" but i'll tell you what....when the wind is blowing at the field and everyone else is sitting on the bench watching....my diraplane 20 is up and flying. it weighs a ton and lands terrible but while it's up, it's actually a joy to fly. this would not be my first choice for a plane (this set up was a freebie) 40 size balsa trainers with large wings are great trainers. that duraplane is supposed to take a beating and it probably will...but you should get a plane that takes off and lands well. how does yours land?