Did you mean WD80EFZX? I haven't heard of any similar issues, but it's possible.
I keep power saving mode set to off and never put my Roamios to sleep (I want those drives spinning 24/7), so I don't have any personal experience to offer. In my testing I didn't notice any real spin-up time difference between any of the Red or AV Greens, but anything's possible.
I keep power saving mode set to off and never put my Roamios to sleep (I want those drives spinning 24/7), so I don't have any personal experience to offer. In my testing I didn't notice any real spin-up time difference between any of the Red or AV Greens, but anything's possible.