Tom,
Thanks for the prompt reply, the pictures are great. Question: Any need for lumbar support? Lumbar support is not indicated, except for the aft edge of the cockpit, and in the case of the series of pictures, FAP-16 sling seat, the feathercraft seat on top of the sling. Follow up Question as it relates to your experimentation: How might a "bun-hammock" stretched across from "cheek plate to cheek plate" work? The boat I'm working on is a stripper, and there are no gunwhales or stringers to suspend the sling from.
Thanks again,
Bill

: Bill,

: Not to worry. I've been using sling seats for some time now in both folding
: and non-folding skin boats, and have found them to be be very stable,
: laterally supportive, and above all, comfortable.

: The folder slings are gunwale attached, but I've also attached slings to
: the chines in non-folders.

: In the LINK below, you will notice that there are lateral support straps to
: keep the seat from shifting side to side. The particular seat can be adjusted
: for height, but in later versions, see pic, I've found it unnecessary.

: The attached pic shows an 18oz. PVC/Polyester sling that is overlapped and
: glued. The lateral support straps are yet to be added, but they will be
: sewn/glued in place.

: After years of experimenting with floor boards,carved foam seats, fiberglass
: seats, and inflatable seats, I've concluded that the light weight,
: simplicity,
: support, and comfort of the sling is best, at least for me. Best way to find
: out for yourself is to make one. It will cost only a few dollars, and take
: less than an hour to make. Then you'll "know" if a sling's for you.

: Tom