Chip:
In general, the Biarritz seems to me to be the least malleable of all those template holes. And of all the Raynor / Macdonald holes I've seen the least amount of variety in the Biarritz hole from course to course, if you discount some of the Raynor versions like the ones at Yeamans Hall or Westhampton where the front part of the Biarritz was not included, and which nobody seems to like.
For starters, the Biarritz prototype is symmetrical, which makes it hard to incorporate natural features. It's pretty much a given that it has to be used on a long to very long par-3, or nobody would ever try to run the ball through the swale. And if it's 220 yards long, everyone wants the green to be big to receive such a long shot. And there you have it.
I'm not saying you can't take the same green concept and use it in other forms or on other types of holes ... but those wouldn't be identified as a true "Biarritz" hole any more than a long par-4 with a sloping green is a Redan.
I am particularly pleased that we found a natural situation for a Biarritz hole at Old Macdonald that breaks many of these stereotypes. It was the hole I was least looking forward to building, until we found the setting for it, which trumps the symmetry others might have insisted on.