Zung
Contributor
Well, I'd say there are some small but noticeable differences between regs of the same class.
Possibly the largest of those are induced by the design and/or setting of the Venturi effect in the second stage. The effort of inhalation could stay constant, or drop to zero or even go positive, force feeding air even when you stop sucking. This can be read off an ANSTI chart (the lower part). How much Venturi you want is really up to you.
Then the human factor can also work the other way around, in the sense that you adjust to what you have.
Possibly the largest of those are induced by the design and/or setting of the Venturi effect in the second stage. The effort of inhalation could stay constant, or drop to zero or even go positive, force feeding air even when you stop sucking. This can be read off an ANSTI chart (the lower part). How much Venturi you want is really up to you.
Then the human factor can also work the other way around, in the sense that you adjust to what you have.