Using a back quiver to hunt with, is a learning experience... It is certainly not "hard" or "complicated" by any means, actually it's quite FUN!!!!!
I have hunted with a back quiver for many years starting in 1976. I switch around to different quivers from time to time, but over all, my back quiver gets the most use over the coarse of a year. This year, I bought 2 new quivers from Howard Hill Archery for my son Tyler & I. I bought the heavy leather ones & they are not quite "broken in" yet. They also make a softer model, that requires little or no "break in"...
I good back quiver, will conform to your back, flattening in the middle. This will eliminate any rattle of broadheads or arrows, and once well broken in... You'll be able to bend over & pick up a quarter off the floor without the arrows falling out!!! Going through brush, you learn to walk "sideways" (not as hard as it sounds LOL) with the arrows trailing behind you. Basicly you just just lead with your bow... The rest of your body follows. If you get into REALLY thick cover... Slide the quiver horizontal under your bow arm & crawl. AS for the "fit" and "angle" of the quiver... I prefer mine to fit alittle loose. I don't like it tight acrossed my chest, and I like room for extra clothing if needed. The quiver will hang lower on your back, and the fletching will not be "behind your ear" but rather down behind your shoulder... Most folks response to this is, "but I can't reach my arrows"??? The answer to this, is the "Back Quiver Bump"!!!
My youngest son Tyler started shooting with an old tube quiver, turned into a back quiver when he was 3yrs old. For his 4th birthday, I got a Wyondotte youth quiver kit, built & gave it to him. By age 5, he had a back quiver bump, that put most older archers to shame!!!!! Basicly, It goes like this... You take a shot, and you miss, needing a quick 2nd shot. You take your bow arm elbow back to the bottom of the quiver and push it up and acrossed your back, bringing the feathers up between your head & shoulder, allowing you to easily reach the nock of another arrow... With a well adjusted & broken in back quiver, and PRACTICE, this can be done VERY quickly!!!!!
When I start anyone into Traditional Archery... I loan them a Bow, Arrows, and an old broken in back quiver that I have. I also suggest that for their FIRST quiver... They get a good back quiver. They will get plenty of use out of it over the years between target, 3D, stumping, and yes... Hunting!!!
Good Luck!!!!! Woodchucker