Appreciate all the input.

Postcard Exchange? Why would I bother with split grade printing for a postcard exchange? I see no coloration to not trying to produce the best print whether it be a 5x7 postcard, or a 40x60 print.

I "think" I may have it in my head as to what filter effects what with regard to highlights and shadows.

I don't mind d/b, and to be honest it's easier for me, than trying to see the print in reverse on the board, and trying to figure out which filter to apply and possibly in what order...

I might be biting off more than I can chew right now. Sooooooo I guess for now, I may stick with one filter for this postcard, and basically d/b where needed to get me to the desired final print.

Pretty interesting stuff though, I have to say.