Used to go diving in the 1970s wearing blue jeans and flannel shirt with long underwear and cotton garden gloves because I could not afford a wetsuit. Even dove under the ice that way once in 1979. Am an old timer, been diving since 1976 when I worked for a dive shop in Houston. Was diving in Hawaii last year and was rinsing my gear at a dive shop I rented tanks from. A fellow diver spotted my Mark14, P200, and R390 and commented how old they were. He said scubapro only made it a short time, realized their mistake and replaced it. I commented that it worked well for me but it was only a back up regulator set. Oh, he said an extra regulator? Yep, I bought these when the airline temporarily lost my primary set. Now I still carry this extra set Incase the airline breaks or loses them again. Then I pulled the other tank out of the car with my Mark7 and a pair of 109s. He asked what... I said I bought them in the 70s and have not seen any reason to replace them they seem to work well for me. Of course I upgraded to double ballanced but really I never could really tell much difference (between you and I). Sometimes I still dive my Sub Aquatic Systems reg but have not in a while.
I have an old set of US Divers but have never used them. Would like to compare them and the Dacor rigs someday... my guess is they all breathe ok if properly maintained.
