Manifold gasket - Remflex

So I ordered Remflex 6008 from Amazon $38. Got it, not sure what I expected but it looks a little dented up? Is that normal? It is not broken, but certainly it is not glass smooth.

I understand it is going to crush as I tighten, but not sure if I should be concerned.
THoughts?

Also it looks pretty think. How much do you crush it and how do you know when to stop. 10lbs torque doesnt seem like much.

go packers