Hi Tom,
Although it looks like they were burnt (which is why I didn't really want to show the pics), they were NOT. The marinade was quite thick and siropy and what you see is the soy sauce. I took them out of the Ziploc bag and placed them on the cookie sheet, when I think I should probably have let them drain slightly through a colander. Because of this (IMO) they also didn't turn out as crisp as what you say they should, but I'm ok with that.
I followed your recipe EXACTLY, and yes, they were on the middle rack. My stove is older so I may have to increase the temps next time, and I'll do that. The bottom line is that they were very tasty, moist/juicy, tender as can be.
EDIT: What kind of Soy Sauce do you use? If there are various types, perhaps the Chinese Soy I used is too dark and thick for cooking with. I don't know.