This is an issue sometimes, there's only so many banners they can fit in the pack. The other guys might not even be using the Banner Pack, and just see native banners. That said, there's really nothing you can do about them using it, so don't let it bug you. As long as no one is copying your tag, there shouldn't be any confusion on the battlefield.
You guys are an announced clan, with clear structure and strategus plans. Just keep doing what you're doing, make your plans for strategus, and have fun with your buddies in-game.
