My heads were milled-effect on compression ratio?

Well, thank you to all you guys for the input,and so quick too! I did some digging today and found according to Larry Shepard in the Mopar Performance engine book the following info "The production 318-340-360 head gaskets were around .035"......." so with that in mind, went to Fel Pro to ask what their 8553PT head gaskets were thickness -wise and they say .039" . Not sure if that is compressed or not on either measurement but heck it's something more to ponder.........if they are both say for the sake of argument-compressed ,then I have gained .004" over a stock gasket but lost .031" in the milling process..........oh mathematics-my long time nemesis.......