Why recreational backmount doubles

[rx7diver]

Independent doubles - the worst parts of backmount mixed with the worst parts of sidemount.

Yeah? Well, I will never have an issue with my isolator valve--because independent doubles don't use one!!

rx7diver

 

[SubseaSports]

I have done plenty of ID diving when all I had were al80's.
Extended solo shore dives and OW drift. Very easy to switch back and forth as needed and simple AF to setup....beer cans work well as tank blocks cinched with a tank strap.
I am more refined now and have a AL adapter.

 

[plaamook]

....beer cans work well as tank blocks cinched with a tank strap.

Fantastic!

 

[InWay2Deep]

These are better in every way compared to a single 80.

I made a bunch of double sets, 4 of these, they sold immediately, so people seem to be super interested.

I personally just want redundancy and twins do that with symitry vs pony setups

View attachment 697052

I assume these are 40s? Do you see this kit? Just the hardware?