Hey again, so I just checked the Load_Cycle_Count on all the drives. I've been running this setup pretty much 24/7 since February and they all have a count of just 108. It looks like WD fixed this in recent Red batches.
Cool, good to know. I have 11 4TB WD Reds, 10 of which are all in the 100k range (the other one is a warm spare). I was pretty upset when I saw the numbers.