I guess I started this meandering thread, so perhaps I can close it.
There seems no better way than a quote from Tom Doak. He said (in another thread on this site)... 'I do not think you can rule out a course from being a links entirely because of grass types ... Some of the links in GB & I have a lot of poa annua in them now, and there are outliers like Humewood. But it's awfully hard to get the links feel and playability with bermuda fairways ... Kiawah may be close to sea level, but it's mostly manufactured and the playing surface does not remind me of links golf much.'
I agree. It's hard to play true links shots off Bermuda grass (or pretty much any warn-season grass for that matter) Perhaps unless you have played golf off tight, thin, hungry fescue and bent grass fairways, that difference is difficult to describe. For me, links courses are based on sand blown up from the seashore, do not have many trees, are covered with cool season grasses, and maintain in such a way as the ground shots are a feasible way to play the course.
thanks for every ones input,
Scott