At the risk of sounding obnoxious,
1. Who is D-Nice? Is he a professional calibrator, a Panasonic employee, or just some guy that has a good rep on the message boards?
2. Exactly how did he (or anyone else) come to the conclusion that this entire process was optimal? And when I say process I mean not only the 100 hours and slides, but also how were the 12 colors of the slides known to be beneficial, how did the 100 hours come to be, and why would these slides not be helpful if we wanted to use different settings?
I just never read a link between this process and how it was derived, so I just want to make sure this is all necessary or at least more beneficial to your set than just plugging it in and watching away at whatever settings you want. For me, I would not get a custom calibration as they are pricey and I am generally happy with Cnet or other recommended settings (potentially D-Nice's when I finally can use them).
Sorry to sound like an ass, I just feel the answers to these questions are necessary to a thread like this.