"Bradley Anderson,
I think some have misinterpreted Whigham's words/description.
I believe the "hogsback" he's referencing is the entire footpad of the land mass immediately preceeding the swale.
I've noticed that a number of these footpads/land masses slope toward the flanks near their edges, giving them a "hogsback" flavor.
I believe this feature was intended to direct marginal, low tee shots (runners) toward the steep, deep flanking bunkers, while allowing more accurate tee shots to proceed through the swale to the back tier.
If one studies the 16th fairway at NGLA, you can see how that center landmass, (spine or hogsback) directs marginal tee shots to the flanks.
I believe that CBM, SR and CB wanted to incorporate that feature in their Biarritz's.
NGLA is replete with "hogsbacks"/spines, in both the greens and fairways.
Hole # 5 is named, "hogsback".
CBM, SR, CB used this feature to deflect marginal shots toward the flanks which were usually sloped, some steep and deep slopes leading down to bunkers or the bottom of bowls.
Some, if not most of the fronting footpads on Biarritz's have that "hogsback/spine" structure and function.
I believe this is what Whigham was referencing."
Pat:
I couldn't agree with you more about some of the hogsback effect on some of the fairways of NGLA. Only problem with your analysis is NGLA never had a biarritz and there just isn't that same kind of hogsback feature and definitely not the effect of it, either playability-wise or otherwise to even remotely the same degree as those NGLA hogsback fairways you mentioned on any of the fairway sections before the swale on any of the Macdonald/Raynor biarritzes I've ever seen or played or heard of and that includes quite a lot of them, certainly including Piping Rock (the biarritz in question here
) which as you know I grew up at.