I made wings using this method this past weekend. I didn't have the HDD on hand, but it's the process that intrigued me - wings that look sauced without the hassle and mess of saucing? That's brilliant!
For wing rub, I like to take scrap savory rubs that I don't otherwise plan on using, and add Chipotle powder for taste and heat. I'm going to do a lot more testing of this method in the near future as my initial results were very impressive.