Over christmass I purchased a prestige euphonium and have been playing it regularly ever since. I'm very familiar with the besson euph and wouldn't trade it for another, however I'm interested to know if anyone's got any secrets for getting the valves to go it a bit faster and slicker. They've always been solid and consistant however they're still feeling quite heavy and aren't motoring the way I could get my old besson sovreign to. I've also noticed a bit of a scratchy sound starting to come through on the second and third and fourth - I know a few people seem to despise the quality of the prestige valves, but does anyone know a good material/technique to get them working a little better? I heard someone mention valve paste? on another thread?? - ideas??