I only rattle where I rifle hunt out west and I have had success with real antlers as well as rattle bags,I walk quite a bit while rifle hunting if you can strap the real antlers to a pack so they don't make any noise while walking.(cover them with something orange so no idiot shoots you) You will definitely get cleaner and crisper tone.
I have rattled in a number of deer with a primos rattle bag,and they are a lot more convenient to carry.