Passing hydro,vip and eddy is one thing... getting a fill is another.
We have a chain of shops here in the PNW that will not fill any aluminum tanks manufactured before 1989 regardless of manufacturer... period. Now I know that doesn't make sense but standing out in the parking lot waving your hands and yelling until your are red in the face doesn't make any sense either.
So... make sure you can get fills resonably close to where you live or dive.
We have a chain of shops here in the PNW that will not fill any aluminum tanks manufactured before 1989 regardless of manufacturer... period. Now I know that doesn't make sense but standing out in the parking lot waving your hands and yelling until your are red in the face doesn't make any sense either.
So... make sure you can get fills resonably close to where you live or dive.