Honestly I've just put it on and it'll be a little while before I get to do extensive testing. But that is the idea, to be able to lower my reg pressure while still maintaining good velocities. It's going to be some longer experimentation because right now everything besides that is stock. I'm going to play with those numbers for a while but I've also ordered the kit to open up the transfer port. So it will be some time seeing what my max stable velocity will be with different weight pellets at stock amd and then with the expanded port.
I would watch the brother of air YouTube videos because that's kind of where I'm leaning except with the stock barrel. He's a little further along in the process so you might be able to better tailor your expectations by what he's already done.