Does it matter, for purposes of keeping your horn in adjustment, whether you store it horizontally or vertically? I recently had two altos go out of adjustment (leaks in the right hand stack and low C) at almost exactly the same time, within 6 months after a prior adjustment, and (given the coincidence) was wondering whether anything I was doing was contributing to that. I am very careful with my horns, but also had been standing them up (on one end of the case) to store them rather than laying them down. It would seem, as I think about it now, that you might be putting more weight on less surface area of the horn (the bottom end, and maybe the C and Eb tone holes) when you stand the case up than when you lay the case down on its side. Am I on to something, or not? Thanks in advance.