Joe:
If they didn't use the old reel driven gang mowers (raised up) out in the rough years ago, I wonder what they did use out there?
In any case, it probably wouldn't be hard to find out.
But as Tom Doak just said it isn't just about mowing, how often or with what, it's a lot about lack of irrigation in the rough back in the old days. Basically it just didn't exist---eg it couldn't or at least nobody thought along those lines back in that day. And that I would practically stake my miniscule fortune on.
I wasn't exactly talking about around the greens anyway----I was talking more about off the fairways. But even around the greens back in the old days everybody used the old snap valves and hand held hoses and with that process they most certainly didn't irrigate the rough around greens if they didn't want to.
Not just that but in the old days at PVGC apparently they even used hand held hoses on some of the fairways.
And this would explain the reason Eb Steineger gave when asked why the old alternate fairway on #17 went out of existence. His simple answer was it was just too hard to get the hoses to reach it.