[Landonfan]

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If you open-muck your AA, what could he possibly call your raises with?

Metagame him, then run him over.

[/ QUOTE ]
You need a better hand to call a raise than to raise yourself. Gap Concept, heard of it?

If you muck AA, then you're probably open-raising KK+. This means he has massive fold equity, and you're the one who gets metagamed.