Hey Tom you're scaring me . I've Found the secret place one of my family stashed the booklet, so that's good but I got tooooo much time in building this thing for it to turn into a crash test model on the first outing! I'll be careful of the ground handling traits , but it seems like that rudder ought to kick it around. Can you give me a little more detail on rudder mods? Did you build yours with ailerons? Thanks for your input , Ken