It's good to see you guys are taking into account two of the more intimate details / differences of the harness set-ups...
1. The color of the two back jet pack straps I thought was always an interesting debate, are they the "BLACK" seat belt webbing like the rest of the straps on the harness and weathered to a gray-ish tone or are they the same "WHITE" weave strapping that you see on the PRE-PRO / ROTJ jet pack straps and weathered to a gray-ish tone???
2. The direction of the rounded portion of the belt buckle is flopped on the PP2 / ESB set-up as opposed to the MOM / ROTJ set-up.