I was googling for something, and somehow stumbled across this really odd thread, over the years, I have rarely banned anybody from here, except the spammers (I think I can count on one hand),. and I don't remember this guy...some of his factoids about the Pitts also are a little off....
https://www.physicsforums.com/threads/failure-of-sparcraft-wings-on-my-aerobatic-aircraft.345531/
https://www.physicsforums.com/threads/failure-of-sparcraft-wings-on-my-aerobatic-aircraft.345531/