Had my Satchel for a year now and irs my general carry bag for whenever a rucksack would be over kill. I too found it too easy to overfill so have stripped the molle pouches off the ends, which just encouraged me to carry more and put a Navtel pouch on the strap and a Maxpedition strap pad which spreads out the load some. I've not had any trouble with it wearing out clothes but then it doesn't seam to move about much at all when I walk. I probably wear it higher up under the arm pit than most, more like they did back in the day than swinging over ya bum like a hippy! But then anyone e seeing me says i walk like a duck so that may have some bearing...
I did cut a sit mat from a old karrimat to fit from the seam that holds the mesh pocket, underneath the two inner waterbottle pockets and up to the top on the front whi h helps protect the contents, keeps it to shape and weighs practically nowt. I suppose it also presents a smooth side to you so it won't rub as much?
I can't say I've weighed it once full but if it does feel on the heavy side I just use another pouch on a shoulder strap ( so far a HT essentials pouch ) going the opposite way over the other shoulder. All a bit 18 th century I know. Can't say I've had to do it often yet. I do like the amount of space in the Haversack, mainly so I can stuff in light bulky stuff like a Sleeka or a xl jungle blanket. With a added hook and eye the latter makes a decent dry weather cloak for sitting out in, so long g as there's no fire, like when you cool down when you stop to eat or watch the wildlife.
Possibly my best buy for 2021.
Atb
Tom