Jack,
When I say “a larger shot size distribution reaches saturation faster” – this is not based on a new saturation curve for the new shot size but on the time to reach the “old- smaller” shots saturation. Could the size S-70M be so small that the finer particles have so little impact on the Almen "A" strip and therefore have less effect on arc height? We certainly see the differences in Compressive stress. The special shot gives us .002" higher than the bottom of the SAE Spec shot.
So would you expect the Special shot to need a longer time to saturate and yield a higher arc height?
