I agree. You want a 18 inch extension and a screwdriver at least that long. It is hard to see what you're doing but it only takes me about 15 minutes to change the reg after the gun is drained of air.
Compare with post #20. They're similar but 1st gun had some tuning before I received it. This one's out of the box factory. And by the time I got to a comparison target I was rushing a little because of incoming rain. It really needs tuning. I'm going to work on the heavier H&N's since they seem to hold a better group down range.