I have the same issue with my Bach C trumpet. What I do is sooo simple: I use those little 'hair tie thingys' that girls use to do pony-tails (ones that DO NOT have any metal on them) to secure my 1st and 3rd slides when I am not using the horn. (helps prevent the slides from coming out in my case) ... Anyhow .. When I take the 'hair tie thingys' off the horn, I store them around the K&M stand! This also seems to prvent the horns from sticking to the stand.