never really understood the use of 16B
They gave me a reason a while back but I forget what it was now

I am curious too, I'd like to know more about it and why would somebody use it in place of the others.Buhlmann ZH-L12 deco algorithm
Perhaps the 16B and L12 something used by the Euros or military there they needed to include? I know that Ratio sells to the Italian military and police and is a huge vendor to NATO navies.