Like a lot of folks, I started out with a short-barreled halfstock percussion gun in the '70s. I then moved on to a longer barrel (Dixie Tennessee) for the looks. Over the course of time I converted it to flint and finally built a rifle using a swamped barrel - and haven't looked back since! For me, a flintlock and a long swamped barrel holds better, looks better and shoots better, but that's just for me. I've never had any problem with a longer barrel in the field - if I were using it to clear a house, it would be a problem, but that's what modern guns are for. I've never lost a shot that I could have taken with a shorter barrel (or a modern gun for that matter), but again, that's in my experience. Under other conditions in other terrain there might be missed opportunities. Like tg said, unless your choice is being dictated by PC/HC considerations, it's a personal choice. Just my two cents!
Hey, I finally have a post on the new site!
Eric