I have really enjoyed the comments here.
Only reason I chose signals, was it was the last threads I had visited, but could have been scenery, models, RR cars threads. So the person in pursuit of the signal colors made me start this thread as a curiosity of how far do we modelers care our passions, but I could have just as well chosen another fine detail thread.
BTW, like another poster stated I am of the five/ten foot rule. So I really don't fit this thread.
So keep commenting away!