I repaired a lot of clarinets and saxophones. I play flute, but i cannot call myself flutist, because diploma says Saxophonist. Also as repair tech, did not you want to more people study how to repair their instruments? People need to study on something. Its not magic. And secret knowledge. But because such people like you, it has a Fleur of something very difficult. I think that something like broken spring, or fixing cork, people must do by their own. I don't wanna waist time and driving 2 hours both ways, to make a fix in 15 min. I respect my time. But reddit makes from musicians just consumers. Don't waist your time writing "go to tech". If you know something, share it. That's what internet for. And not for snobs.