Scout carry and horizontal carry are all the same except that the knife is placed at the back, 6:00. Generally, this is drawn by the hand that will use it on the side it will be used from, as opposed to cross-draw. It's like using a "left-hand" hand crossdraw but putting it on the right side, so to speak. This is how I have my sheaths setup because I like to draw the knife from the same side as my hand. I find resheathing easier this way and drawing isn't too hard either. Some interference with the arm can occur for things like having the knife in this position while using a machete, in which case I'll move the sheath to the scout carry position as I wear a riggers belt that sits outside of my belt loops for ease of removal and movement.
RE: "Scout carry and horizontal carry are all the same except that the knife is placed at the back, 6:00. "
I would respectfully disagree with that from my experience. While I would agree that some scout carry style sheaths could be worn in multiple positions, this is not true of "all" (at least in my mind). Additionally, in my mind "scout carry" has always specifically meant SOB (small of back), strong-side draw. The design goals limited to those prerequisites vs. the application of my interests.
This is the reason I did not initially just say scout carry or scout carry "style", and elaborated detailing a few specifics.
Couple examples (from my perspective):
1) Belt Straps:
How and where sheath belt straps are located. Is the overall package short enough that the strap near ricasso/handle transition can be outside or left of 11:00 belt-loop (my BK-16 & ESEE-3 examples) or need to be right of belt-loop for longer blades (like my 6.5" blade described). In my mind 6:00 is much less sensitive to this as the narrow gap between belt buckle & first loop is not a factor, because typically at 6:00 the knife/sheath are more or less centered and belt loops are positioned further apart allowing more positioning options. Are straps in permenant location (like your example), precluding the option to move from 6:00 to 11:00 (or vice-versa) without inverting the knife in the transition.
2) Snaps & Fasteners:
How snaps and/or fasterners (SF) are located relative to being exposed & un-intentionally caught/snagged and opened (yes, this has happened to me). If SF are facing out, they are much more susceptible to accidental opening & possible loss :-( This is a grievance I have with the leather sheath in my photos above. In 5:00 scout carry the belt-sheath straps SF face in and are thereby protected, but the handle strap SF faces outward (what most might typically want I would guess ...) and is susseptable to catching and unintentional opening. When in my described 11:00 horizontal the handle strap SF is protected against body (which I like) but belt straps SF are exposed. I understand this may also differ if straps that surround belt and sheath 360° and overlap at SF (with extra thickness) vs. the one in my photo where the strap is more taco (does not wrap the bottom and overlap at SF).
3) Any accessory attachments (fire-steel, sharpening stone/rod, etc.) may not easily transition from 6:00 to 11:00 for same reasons mentioned above. BTW, I am not really an accessory attachment guy.
Unfortunately, have yet to meet a maker that uses (or knows what are) one way snaps :-(
I think there are a few simple solutions to the issues I have mentioned, they begin with awareness from use (not that my use is any more significant than anyone else's, but they are MY experiences), but it is my guess most would not care as they are happy with the generics of "scout" carry or scout "style" as it works for them much the same as most are happy with a knife that simply cuts as they believe that's all a knife 'need' do, and a sheaths job is simply to carry a knife safely. Buried there are some of why I bought this BK62 (it appears to be packed with subtle details (lost or unrealised by most) that from decades of field use I know I will appreciate). Let's just hope the handle is not too short for me (my historic preclusion to Becker's generally), and that blade is actually 5" long.
Sorry for the long post, and any that get lost/sleepy in my details ;-)
