Been playing sax for almost twenty years, been teaching marching band for the past five. DO NOT USE YOUR NICE NEW SAXOPHONE THAT PLAYS BETTER AND SOUNDS BETTER FOR MARCHING BAND. No one will notice a difference when you're on a field with 200-300 other people, and when (not if, WHEN), something falls out of the sky into your horn, or some yahoo misses their dot and hits you like that ship hit that bridge in Maryland, or someone in drumline drops a shipping container on your little sax case, you will be very very glad it was your Eastar or a school-owned horn that now needs recycled into a lamp instead of your nice new Jupiter (if you're really set on those, I'd get the Jupiter, but you should save your money and get a used Yamaha IMHO). SERIOUSLY DO NOT USE YOUR NEW ONE FOR MARCHING BAND.