Pondering what system to use for having camera use, lens change quick/easy/light for the horse/mule riding...
Suggestions?
I've got one of these, and rather like it.
Cotton Carrier Vest/holster
Carried my camera (E-30, 14-54 lens) painlessly on a hike around the Mayan ruins in Belize, with another insert holding a large heavy 50-200 lens (insert screwed into the lens's tripod stabilizer mount) with the 'holster' at my side. Don't know if the holster is really high enough to be comfortable on horseback, but it is above the waist. It did not seem to be 'rocking' with walking, even climbing high Mayan steps (designed to be climbed 'on all fours' by shorter Mayans, if the guide was to be believed).
I found it far more comfortable than a neck strap, and the disk can only slot into the insert one way, so if you put it on your camera so that the natural 'angle' of holding it with your preferred hand is the way you slide it in/out of the vest, when it rotates with the lens pointing straight down it's nicely secure. And you can leave it 'mounted' and rotate the camera to say 90 degrees but have it still secured when swapping lenses, so it's a nice 3rd hand in a way as well. Add a pouch to the opposite side strap from the holster for another spare lens, lens caps, etc. and you're good to go without a backpack.
I am a tad irritated that I emailed them after getting it (for Xmas last year) about a back-of-the-hand "grip" strap option that would work with their disks, and received absolutely no reply. But I see from checking out the website today (verifying the link was still correct) that they're now offering one (and it's free with the system until the end of the month). I'm sure I'm not the ONLY one that had that idea, so hardly think they owed me one...but would have been nice to get some response at least that they'd heard the feedback and made one.