nobody else is selling "resin 7" boards because it probably was a trademarked name that dwindle owned. you can look up the woodshop thread in shoes & gear, pretty much everything DSM is those "resin 7" boards, it just means 7 plies with epoxy resin glue, that's like the standard DSM made board, dwindle just made it sound tech. i skated resin 7 shop decks. if jacuzzi/opera have cool unique shapes then those might be exclusive to them, but i wouldn't know because i don't care about either brand really.