The Longbow has a "sleeve" up top which just slides over the bikini frame. I put two slits in it to run the load lifter straps out of. I plan on having someone sew them but for now they are fine. The straps on the longbow line up fairly well with the bikini attachments. You will just need a few split buckle sets to secure everything. I ran the upper DELTA strap up to the pack which also works perfect. The longbow is a bit short for the frame but it is perfectly fine as I put my quilt, pad, and shelter below the pack and held perfectly in place with a Grabit. For two different brands, they work very well together. Except for cutting the two load lifter holes, nothing has to be done to make it work.