Something else to throw in the mix of a reenacting personna is what age, social and economic background, and what life experiences the person would have had.
Had the person you are reenacting had a military background, you might or could well have seen a military influence in his shot pouch and accoutrements. If the person had grown up as the son/daughter of a laborer or small farmer, they might/would have made the bag differently. Some one heading out on his first long hunt may have made do with what he had the first time and then come to his own conclusions and ideas about what he wanted/needed in the construction of all his gear and then modified his equipment and or if there was really something bad about what he had - replaced it. If you were the son of a wealthier family, your gear would have been fancier.
I suspect most people today are not that much different than in the 18th century in one regard Their first home made shot pouch is rather crude, but serviceable, unless they have a background in leather making and/or good mentors. Then they see what other people have done and that gives them ideas to improve their kit. As they/we learned more, they/we made better bags that fit their/our own use and style.
I'll never forget standing in formation and awaiting "inspection" by the Commanding Officer at Historic Fort Wayne, IN during a special events weekend where we were doing War of 1812. We were doing "Brush's Company of Militia" because the uniform was a very simple (and cheap) linen shirt, over shirt and trousers. The most costly things were the hat and shoes. Anyway, due to being a Staff Sergeant of Marines (modern day) I went through the period drill manual with snap and pop that would not have been likely seen of a normal militiaman and especially not a Private. When the Major inspected my musket, he told his Executive Officer - a Captain, that their troops (regular soldiers) could learn a thing or two about military discipline from us and especially how to maintain a musket. The Captain "suggested" that the muskets had just been issued and that's why they were in such good condition. Well, I couldn't let that go. So I piped up with "Sir, begging your and the Captain's pardon, but I learned how to properly take care of a musket as a MARINE prior to my honorable discharge." The Major grinned and the Captain smirked and tried not to laugh out loud, as there was a good sized crowd of tourists inside the Fort watching the inspection. Later on he told me he had not been ready for that. That "Captain" was Brian Dunnigan who took over Fort Ticonderoga a couple three years later and is often shown on the History Channel.