I also got rid of the deadman. After hours of using the blaster I found that a quick coupler screwed in the end is easier to use. I buy them by the handful. When they wear through I throw on another. The hole is slightly larger which means more volume, surface area and less air speed meaning slightly weaker. It has worked well for things I have used it for.
I was thinking about my situation a little more and just realized what you were trying to demonstrate with this picture and post.
You eliminated the valve with cone shaped nozzle attached to it. So you have lost the control to turn the blaster "on" or "off". But who cares about that right? Because you control the amount of air entering into the pressure vessel, you can turn it "off" from there.
Is that correct?