Do you lose more portion of a sandwich when you cut it diagonally instead of horizontal? I feel you do.?

I brown bag my lunch everyday & starting this week began cutting my turkey sandwich diagonally instead of horizontally (which I have for years). Something seems different with the sandwich cut diagonally. I can't quite pinpoint it but feel I'm getting less of a sandwich cutting it diagonally. I'm beginning to think the angle in which the knife is inserted to cut the sandwich somehow absorbs or erodes its contents. Has anyone else noticed this? Is there anywhere I can find out if this is a fact?