In addition to what has already been said I'd offer that a single tank adapter is now mostly considered old technology. I haven't had one for at least 5-6 years. They were originally for the era when wings were all for doubles and you only used a backplate and wing with singles out of necessity. Pretty much all modern wings have roll control in them now. I think just some Halcyon and Dive Rite stuff still uses them. I've never really understood the use case for a STA in the modern era.
The impossible missions are the only ones which succeed. -JYC