Let's see, going from the .028 Mr Gasket to the MP .024 is .004 of an inch. Four thousandths of an inch. About the thickness of a piece of paper. It won't make enough difference that you will ever feel or notice.
Agreed. One also has to take into consideration the bore diameter of the gasket. Summits website has the compressed volume listed. At some point you are just splitting hairs. DODGE 5.2L/318 MOPAR SMALL BLOCK LA Head Gaskets