I thought this would be the case but exactly opposite occured on my Oct 2016 exam.
After i was done, double checked sheet and the answer distribution was WAYYYYY off. If i recall correctly, it was to the tune of 60%-70% were C. I've never seen it this bad on a scantron...got to the point i was looking at problems to check if I read them wrong/missed a step and try to avoid C.
For my handful of guesses, I attempted to even out the distribution and went all B but sheet was still severly unbalanced and highly illogical. Passed without difficulty but it was odd. Dont remember that from previous 2 attempts.