My old foreman made us hand-nail headers for years until a guy from Austin showed us a nail gun trick
Back in 2009 I was on a job in Wichita and we framed every header by hand, just a couple guys with hammers and a whole lot of patience. A sub from Austin came in with a clipped-head framing nailer and had the same wall done in about half a day instead of the two days we budgeted. I remember the foreman standing there watching him, arms crossed, not saying a word. We switched over after that job and never looked back. Anyone else remember getting dragged into the old way just because that is how it was always done?
Is it really the nail gun that made the difference, or was it just that the old way was all your foreman knew? I mean, hand-nailing headers isn't automatically bad, plenty of crews still do it on small jobs where dragging out a compressor and gun takes longer than just swinging a hammer. Maybe it's just me but I don't think the tool was the problem, it was guys refusing to change how they worked.