I agree that the pictured positioning of the horn looks unwieldy. I've seen that my way is probably incorrect, but I carry my bag and horn on the left side, with the unattached (i.e. separate strap) horn hitched up just above the bag flap, even though I am right handed officially. Having the bag on my right side just felt odd, especially when loading. In my defense, I think I was likely born left-handed or ambidextrous, but the wonderful diversity of left-handedness wasn't exactly embraced when I grew up. Just for thoroughness, I've been priming (in the woods) with a small flask from my right pocket, but just got a really neat little horn for the same purpose; it will probably hang on my right side or go in a right-side pocket, as it would be awkward to reach over from the left with the main horn, and using main horn to prime makes me a little nervous, anyway, although it is probably just fine and likely HC.