Free Flowing 3rd Valve Slide Hi Fellow trumpeters, I have had the same trumpet for 37 years - a Bach Strad 72 model. I recently purchased a brand new trumpet - a Schagerl JM2 Klassic (sponsored by James Morrison). My question is this: When I place the trumpet on a trumpet stand, should the 3rd valve slide remain in a "closed" position, or should it slowly slide open until it stops at the lock position? The shop that sold me the trumpet say that all good trumpets should have the 3rd valve slide moving when the trumpet is held upside down. This never happened on my Bach, so I am confused. Can anyone share their experience with me to let me know if I should be concerned, or be happy that the 3rd valve slide works as it should. Many thanks in advance.