Originally Posted by
TeeDee
Off the top of my head so to speak:
My only question would be what do you use to attach the velcro to the ccf pad?
Glue or sew it? In my experience, glue "ages", hardens and cracks, especially when exposed to varying temperatures and humidity levels. Probably not all glues. The glue would have to be flexible when set, otherwise you might have hard spots that could prove to be uncomfortable after laying on them for hours. Some of the modern adhesives or double sided tapes like carpet tape might work. Some of those tend to dry and lose their adhesion. Some research would have to be done on that. Sewing would avoid those difficulties, but I don't know how well the ccf pad would hold up to a line of stitches. Might that introduce a weakness that could tear? Any weakness introduced into the pad would be aggravated by separating the velcro - it takes quite a bit of force to pull the hooks and loops apart. Over time any weakness would lead to breakdown of the pad. The structure of the pad would have to be stronger than the force required to separate the velcro, otherwise you would simply pull the pad apart instead of the velcro.
It is similar in concept to the SPE, but without the ripstop sleeve which would save about 3.5 oz for the SPE. Adding to the head and foot ends cannot be done with the SPE, at least not without major modifications to that design.