I shoot birds and gardens mostly, so yeah it's pretty uneven. I just bought a domke f-6 (I think), something small and light, and so far I like it. most of the time when we go out my wonderful husband will help and carry the bag. I had a small waist bag (too small to hold the 200) this one I just bought has a little strap that I think can go around the waist. I don't think it'll be too comfy, but it's so light it doesn't really bother my shoulders or neck. Normally when I go out to shoot I only have a light wider prime and the 200, now it'll be the macro. I don't have my 24 any more and am thinking of getting the 20 instead or getting another 24. So i really don't need it to hold much weight. I just need something that doesn't look like a camera bag so I can bring it everywhere. Most days I just have the camera and one lens, so I only need it to carry it in the car.
Jon what is the number of your waist pack? I looked at the kata 92 (I think that's the number) and it looked too bulky. When I shoot I tend to get on the ground and on my stomach a lot and something bulky gets in the way.
The one thing I'm worried about is my husband band is playing a rather large gig next week (opening for a national act!!) and I want to get great shots, so the bag may be heavy, but it's only an hour and the drummer is driving not me so pain medications will help!