Thanks for the replies everyone. It's been interesting to read.
Wandering Daisy, have any pics you can share of your setup?
I believe my body shape to be a bit odd and has much to do with my difficulty in finding a pack that fits me well. I'm only 5' 9" but have a 21" torso. When I'm in shape I weigh around 175 with a 32" waist, but I carry most of my weight in my torso and have chicken legs! My trapezius muscles are larger than normal (not sure if this affects this or not) and this is where my pain and discomfort tend to be.
Share your advice and personal experiences, post a gear review or ask any questions you may have pertaining to outdoor gear and equipment.