That actually looks about right, Verikon.
It's just sad that my results have to curve down like a frown while everyone else's are nice and straight.
But it is good to know my results don't spell doom! I'm always paranoid my RAID array will collapse, but since my WD drives are so new (under a year) I think they are single platter drives which, from what I've read, means they are more reliable. Fewer parts, fewer places for failure. Keep it simple, stupid.
Hopefully they will last me a few more years.