So my current harness and bag setup is a Versaflex harness with the original Stingray bag (the blue one for the 633). I'm really interested in the K-Tek harness, but I'm torn between getting the updated Stingray bag (#2) or going with Orca. Anyone out there that's tested both bags with the K-Tek harness? Which one feels better on your back? Also I was told that I may want to go a size up in the bag for the Stingray since I'm not using low profile cables (Running a SD 633).