I am 5’2” and size 4, with the covid weight gain, and I have two jumbos and 1 medium. I started with a mini then with the jumbos. I then bought a medium just this year with a few more minis. When I‘ve carried my medium casually, I think it is small because maybe I am so used to my jumbos. I usually carry the medium crossbody where it sits high since I don’t want to get color transfer, again in a casual setting. I wear my jumbos double strap since crossbody is too long. I don’t find them heavy at all. I have worn them all day without issue. I think I had moved on to the minis, just because logically I see the price as more justifiable, but yeah I have a harder time carrying my things because I have a huge bunch of keys (think building superintendent lol). When looking at other bags, I think I still gravitate toward the jumbo size. I guess it depends on what you want to use the bag for. I think I was like you having a black/gold, then wanted a lighter bag. I wanted a lighter bag and being the more popular size and not having one I bought the medium beige. But still, I think I want a black/silver, red jumbo, even a beige/silver jumbo. It depends on what you want to use the bag for, what your needs are. I think I would rather still use my black jumbo at night going out. For my lifestyle, minis are for travel or when I go somewhere like the park/dog park when I don’t want to mess with the double flap or when I go to places that are a crowded and want something more compact. If the medium is a good size for you, stick with the medium, but if you honestly need a bigger size get the jumbo. Think about your needs rather then rounding out your collection.