No real point to multiple partitions on a non-OS drive.
Also, no real point to 'burn-in testing'. I used to do all that hocus-pocus, but then I stopped. My drives don't last any longer or die any sooner because of it.
I had a Red as 2ndary drive to my SSD, but stopped using it for that. It's too slow for anything other than light work.
Actually, my HTPC is a semi powerful desktop and the media I have stored on the 2x 2TB drives (1 Seagate, 1 WD Red) is no less critical.

I sure didn't do any burn-in or testing of the other 11 HDD's I've installed in the past 2 years.
That's kind of my thoughts... Install and go... and BACKUP!
The point of partitioning the Red or not is to have a small slice of the best-performance-on-drive dedicated to certain higher demand but large things (when SSD comes down to 10c/GB, Ill say goodbye to all this), and the rest for data that is not as speed sensative, something Tsavo might have want to considered before regarding the drive as 'too slow' ಠ_ಠ
http://www.anandtech.com/Gallery/Album/2223#1. Meaning you were pulling data from all over the drive, likely from the slower parts rendering you with low access time average *ontop* of low throughput across the board (sequential, random etc). Guess what helps stop that?

As the PC is my main game machine, its going to serve more than videos and surf the web. Thus considering sliding the drives plates outer section into a partition for large hungry games to improve access time is relevant.
The point of burn in isnt to make the drives last longer, it is to find any weaknesses in the drive sooner (before RMA limit) rather than later (have to deal with warranty and risk losing important data). So it not 'hocus-pocus', its responsible computing.
I use to "install and go", but then I got some bad drives and bad performance over the last 15 years, and wised up to be more mindful of such things and be preemptive in their care. The Russian roulette method isn't the best, and you may want to consider out of your 11 hard drives, you have not filled them all, and the errors may lay in a sections you've yet to fill in two years, something I will be sure about rather than risk my data, as I'm guessing you don't burn-in your backups either. A very bad and risky method for data longevity.
I can certainly understand not wanting to bother, but don't pawn it off as a good reason NOT to do it. I'm simply asking if anyone knows of a good utility for it.