Beautiful outcome, Sitflyer! You're a brave man.
I have not yet attempted dye, but after reading this thread did indulge in a bit of "hand tinting" with permanent markers, which aborbed into the bone more readily than I'd expected. My amber mini copperhead arrived paler than anticipated (or hoped). I may try to go further, perhaps adding more mid-orange-y background, but am liking the results so far.
Here are some before and afters (different days, so different lighting, but I tried to get close enough to give an idea of the subtle changes).
Hey, at least I didn't try to burn it, right?