The Worst Part of Playing Trumpet, a Short List: (1) the sheer amount of physical human attraction that it generates from all sexes. (2) sullen looks from newly bedeafened woodwind players. (3) tuning slide grease. Nobody likes it. It's annoying. We get it. But it's a necessary evil, so stop whining and start putting something on your horn that NASA has been using for years: Monster slide grease. Thick, long lasting, perfect seal. You won't lose the tub either, like you normally do—this one is toogood looking. - the manufacturer