I marched Drum Corps from late 1972 to 1977 and then I was an Instructor for 5 years in both Jr. and Sr. Drum Corps. I even made it to the Championships with one Drum Corps. I feel that those single rotor/ single valve and then rotor and valve "Bugles" were better then most people remember. It's true that there were a lot of junk "bugles" out there back then, but still most of the "bugles" used were not that bad. and they were antiquated compaired to today's versions. But today's versions aren't even "bugles", they are "Bb trumpets".They did have some weak points to them like some notes weren't able to be played on the "bugles" so the brass instructors just had to write the music in a key so one could play the song. All the marching members back then could still produce fantastic sounds out of these "sub-par" horns. I feel that the marching members from back then could run circles around the modern day members. Just listen to Santa Clara Vanguard or Phantom Regiment. And don't forget the Blue Devils or the DeLaSelle Oaklands and a whole host of other Drum Corps from back then and thentell me that what they did wasn't incredible. They played so great with these junky "bugles". Those "bugles" were much more crisper and brilliant the "Bb trumpets" in use today. Today the trumpets all sound so flat and lifeless. No sissle. And the use of the "bugles" made the whole thing much more special. A challange to learn how to play, the whole different key thing. I played on Sapranos and Mellaphones "Bugles" That's my two cents worth!