I have done the same thing, after all those hours of work!
I do little modelling now, son has up and flown the nest.
yea, i was in a hurry... I went to the airstrip and wanted to fly it really bad but i had a problem with the landing gear and I couldn't take off using the runway so i removed the gear
and was going to just belly land it like a lot of people do. and i read in a forum that other people have hand launched that same model, needless to say my handlauch wasn't successful. And that mustang became a yard dart :( LOL