In reply to JohnBoy:
I'm errring toward a YES and Simon Lee is the one to replace it, ideally.
On one hand I think, well , we've moved on, big cams, sticky rubber, let's make it harder and remove the artificial protection and hold.
On the other hand, nice to look up at the route, spy the chockstone and say 'yeah Joe Brown climbed that fat crack, no big friends or sticky rubber then. He did it in rubber-soled gym shoes, fag hanging out of his gob, dropped a great big f*ck off rock to serve as is only pro' at half-height."
Hard as nails those old climbers from the black and white days.