My primary instrument is saxophone but I also play percussion...just not well enough to be in a corps. And of course saxophone isn't used in DCI (at least not yet, thank God). So no, I've never marched with a corps, but I'm a huge fan.
Fightin' Texas Aggie Class of 2004
37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.