You have a two stage regulator, you don't have to worry about the end of tank dump. And yes, you can run the regulator at max psi the whole time, nothing wrong with that. The only thing you should worry about is the diffusion method, you just have to avoid diffuser that require 30+ psi. That a nice regulator, especially when it's free and brand new.
And you should send the person who gifted you that regulator a fruit basket. It's a law in Canada, you need to send them a basket of fruits.
And you should send the person who gifted you that regulator a fruit basket. It's a law in Canada, you need to send them a basket of fruits.