I do not have either, but do admire both. I would say your XD9 is similar in size to G19. XD's have grip safety slightly different ergonomics, so I am sure there are differences. To me the 26 and sc are just smaller versions if that is what you want. If your looking thin and light there are other options for that. If it were me, I would carry the larger guns, a couple ounces in weight, >1" in height and length, nothing in a good rig and suitable clothes, and the capacity is increased 50 - 60%.