David,
A couple of others:
At Portmarnock Links Hotel, head greenkeeper Fintan Brennan has successfully overseen the widening out of some playing corridors by clearing some scrub and extending short grass run-offs.
This has been done even more dramatically at Portmarnock Golf Club where Gary Johnstone has made a huge impact on the links. A lot of the non-indigenous Swedish Pines planted in the 50's have been cleared and short grass run-offs have been given large extensions. Gorse has been cleared in certain areas of encroachment as well, such as around 9 green and in front of 11 tees. And where formal, ornamental planting had taken place (the clumps to the right of 18 fairway)... The best individual example of how a hole can be improved is at the famous, par-3 15th along the coast. Here, a solitary palm tree was removed from behind the green and the buckthorn on the dune ridge by the green was removed as well as the ugly, boundary fence that ran the length of the hole. Beach / sea views down the strand have now been opened up from the tee and the hole looks natural and more fearsome (whilst playing slightly less tight).... Don't have before and afters to hand unfortunately...