On one of the more active trumpet discussion boards this month was a question about inserting a dime in the third valve lower cap to change the sound of your trumpet. Being the skeptic I am and will always be; I decided to test the concept. I played with the dime placed in the bottom of my third valve for two weeks and today removed it for my testing. During the two weeks with the dime in, I neither felt, heard nor recognized any change in timbre, accuracy, response, range endurance, amount of money made or any other factors in…