I only add pink hangers to my route's retros.
Almost did some on SPH last weekend. A big sheet of choss rock had come off a year or so after the FA. We stood on a big stance on that sheet to place the bolt that was above it in good rock. Now I'm thinking of backfilling a bolt in there.
It's some of the best choss eVAR.
With that sheet having broken off, subsequent bolts are more closely spaced now on the latest proj. WOOT!