A few thoughts.
1) this seems like it would work best with the Acro shape. People are constantly dropping their Range Panda optics covers just walking around stages. Ironically the open emitter designs that most need a cover have the least cover friendly form factors.
2) for AIWB, my clothing works pretty well.
3) for open carry, a Safariland RDS holster is decent -- we just need to convince them to make one for a Glock 20/21, HK P30 and USP.