Man, just was on a long hike-in fishing trip in the deep woods. Nothing beats a Richardson. It was one of the best purchases I ever made. It has been perfected.
You don't need to wear a vest. Zingers go right on the straps, so I got my forceps, nippers, and thermometer handy. What you do need is some sort of pouch, on the straps, or on the belt, for tippet, shot, keys, flashlight, camera, etc. Despite looking kinda gay, a fanny pack is perfect.