"And taste wise, I think they look fantastic at TCC but they would not work at other courses."
Jim:
Jean-Marc Monrad's remark above is very sensible and is the way your course, or any Flynn course, should approach this subject----eg the course should maintain their bunker surrounds in such a way that fits the basic look and feel of the golf course.
Flynn didn't exactly have any tightly defined bunker surround look---his bunker surrounds (grassing) was generally intended to be sort of evolutionary and kind of site specific. At least there's no question that's the way his first course (Merion) was treated bunkerwise.
TCC does have some of the coolest looking Flynn bunkers we've ever seen, they do have surrounds that're pretty rugged looking with longish eyebrows. It took a lot of dedication and effort from super Bill Spence to get them that way. But they fit the look of TCC generally and they aren't necessarily the look that's appropriate on every Flynn course in my opinion. Shinnecock's bunkers look really good now too but the Shinnecock look isn't what Rolling Green should have for obvious reasons.
I'd suggest if you guys want to grow eyebrows on your bunkers (and I think you should) to do it no more than about 2-3 inches where the grass shows below the sod and where it meets the sand-lines. No ball will get lost in that and that will make them look a bit more natural than a really clean constantly trimmed edge.
If you want a really good maintenance model and look for what I just suggested above for Rolling Green I'd suggest you guys just go over and see Mike McNulty at PCC. Your bunkers being Macdonald & Co shaped have a bit more "roll" on the tops of some of the surrounds and they are a bit more grassed down than PCC's in-house project but the look of the eyebrows could easily match.
In my opinion, you certainly don't want "eyebrows" or grass bunker surrounds at Rolling Green where you'll lose a ball. Something that rugged just wouldn't fit the general look of the rest of that golf course.
On the other hand, over the years there have been a number of Flynn courses that maintained their bunkers surrounds and bunker edges in a highly trimmed and clean manner and look. My feeling is William Flynn, being the true buff he was on all kinds of grasses, and with the evolutionary grassing approach he took to bunkering, would not have appreciated that highly maintained and trimmed bunker edge look. Plus back in his day they just didn't have the type of equipment (Fly-mowers and weedeaters) to do that kind thing so obviously they never had that super clean and trimmed look.
Or here's an alternative answer for you Jim.
I hear you have a really good super over there now who's apparently doing a lot of what was needed on your course. So, instead of agonizing over all these little things like eyebrows why don't you just ask Andrew how he'd recommend maintaining the bunker surrounds and their eyebrows and just go with his call?
You guys at Rolling Green are lucky---because you have one helluva golf course and architecture over there. To do that course real justice and up it's exposure and its reputation even more than it already is all you need to do is keep going on the things you guys already know full well you should concentrate on----eg just keep at your tree removal program bigtime, keep working on firming up that golf course bigtime, particularly "through the green" and maybe grow some bunker eyebrows a bit like PCC (which definitely aren't going to lose any golf balls) and you guys will be home free and you'll have that great golf course of yours back where it belongs maintenance-wise and playability-wise.
Again, for an over-all look at Rolling Green just keep exposing that general "look-through" from around the golf course of the great looking natural topography and the great looking architecture you have. Trees are a dime a dozen but the type and look of the architecture and topography you guys have over there is rare.
EXPOSE IT AND SHOW IT as mush as you can.
(But always remember, DO NOT EVER EXPOSE what is all around and just outside your boundaries. Keep those boundary-line trees bigtime).