Post what material the tweeter is made of first before you listen to any of these chuckleheads. Or at least whether it's a soft material or a metal dome. If it's a metal dome, odds are you won't hear a difference, and trying to fix it will just mess it up more.
It wouldn't hurt to contact Infinity and see what a replacement costs. You likely won't hear a difference, but it's a fact that any deformation in the emiting surface of a tweeter will cause a wave front difference that -might- be noticible depending on where you're sitting in the room. Tweeters are carefully designed for even, wide dispersion.
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