I have resurrected this thread from a couple of months ago because of something I saw two days ago. You may remember that I started the thread by asking whether peco points would be improved by replacing the plastic checkrails with metal ones.
Two days ago I was at Doncaster station waiting for my wife to arrive. Whilst waiting I was looking around at anything of interest including the track. Now there is a crossover right next to the middle of platform 3. (It is because platform 3 is divided into two, 3a and 3b, with a crossover between them so that it can act as two short platforms.) I suddenly realised that, although I was only about 20 yards away, I could hardly see the checkrails because they were so dark that they merged with the sleepers below.
So perhaps peco have got this detail of the point correct by making it of dark plastic.