The customer wanted a Modular Panel Insert with accompanying holster and magazine loops to fit into the “hidden” flat pocket in an SDS Engage. The only minor annoyance was that the pocket is both taller and deeper overall than the length of the zipper. Not much to do about that except build the panel to take advantage of as much space as possible. Bit of a tight fit getting it in, but otherwise good to go. If it doesn’t work out, he can always relocate it to a different pocket.