mental ray stories -Final Gathering- 45
Minrad = 1
Maxrad = 2
Finalgather rays = 200
Min Samples = 2
Max Samples = 2
RESULT:
Well, you get to see the railings better with higher sampling. So if you are going to render out smaller pictures, then pushing the sampling up may not be a waste of time. It could be something else if you render out a uxga resolution pic.