Merion is perhaps the best example of a club taking all of the patina out of their playing surfaces. They used to have such a crazy combination of different grasses in the fairways and especially the rough. It gave it a lot of character. But then the club regrassed everything in the Hanse renovation and, while "perfect" it lost all of its patina...it would be like polishing the Statue of Liberty back to its bare copper.
There have been a number of clubs here in the Twin Cities who have re grassed their entire courses to bent, primarily in response to some bad winters that killed poa greens. But similarly to Merion I personally think it looks too uniform...but members at those other clubs seem to love the look and the Supers seem to enjoy the lower maintenance. So...?
I can understand regrassing greens if you have a poa/winter kill problem as the greens essentially aren't functioning. But I like classic courses that have a little more mature worn in look.
Around 1995 or 96, Golf Course News did an interview with Bruce Hepner. Was great. Some stuff that I recall was his attitude about "finishing", over-polishing and the method of slashing and gouging at something and cleaning it up. Look forward to the FriedEgg interview.
I recall an interview with Matt Shaffer when he was prepping Merion for the US Open. That they'd been topdressing the fairways over the years to the point that they buried all the weed and poa. And that they never used mechanical practices (aerifying) because it would have brought the undesirable seed to the surface.
Matt Schaffer also commented on the roughs. That it is a hodge-podge of grasses and clover, and if I recall correctly, they were even seeding areas with different grasses to enhance that effect. Find it hard to believe this would be undone. Has it been?
A short article from Links Magazine about Merion:
https://linksmagazine.com/a_simpler_game_perfectly_imperfect/“We have total disregard for the grass,” he says. “I know that sounds bizarre but that’s just the way I operate. This course doesn’t have a homogenous stand of bent or anything anywhere. Our greens have anywhere from five to nine different varieties of bent. Mr. Davis really likes our rough because it’s so inconsistent.”
The Hanse restoration took place before the US Open. This and the interview I'd seen took place just before it, and they're admitting to having a mix of turf types everywhere.