[martin417]

I am familiar with gas pressure regulators, having designed (and hold patents for) several. I would never recommend using a regulator at or near the extremes of its adjustment range, much less above it. An adjustable regulator works best near the middle of its adjustment range, and its performance is worst at the extremes.

If I was specifying an adjustable regulator for use at 60 PSI, I would specify one that had 60 PSI as the middle of its adjustment range, 0-120, 40-80, 30-90, etc.

I would never want to use one that had 60 PSI as its extreme setting, or worse above its extreme setting.

I am not sure what the goal is here, unless they are worried about a team cheating by changing the pressure on the field.