Did some one send an 80 lb chunk of iron through the mail?

Two #40's won't fit in a flat rate, and they'd be over the #70 shipping weight limit. That being said, I've had a decent amount of #25 plate pairs shipped, and it's no problem.
In terms of grip plates, always liked the Pullum type, sadly no good American firms make or import copies -

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I suppose the Igx models are similar, but just "off" to my eye -

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