I recently played a golf course that had a unique feature in a number of the greens.
Perpendicular Ridges/Spines staggered within the flanks of the putting surfaces.
These PR/S served several purposes.
The placed a premium on accuracy with the approach shot, for approaches long or short of the area between the PR/S created very difficult approach putts.
Approaches hit into the PS/R usually backed up leaving the golfer with a LONG approach putt.
Approaches hit long of the rear PS/R left the golfer with a very difficult approach putt, usually long and down hill.
Recoveries were also challenged as recoveries into the PR/S produced similar results.
The neat thing about the PS/R's I observed were their staggered nature, in other words they didn't extend across the entire putting surface, but rather, about 1/3 into the putting surface, and they PR/S on the left, didn't match the PR/S on the right.
These perpendicular Ridges/Spines provided great challenge and FUN.
They created great hole location zones.
What other courses have more than a few greens with this unique feature ?
Why don't we see more of this ?