It's the final taste that matters. My style is different than yours because I'm after a different finished product. But it's all good when everyone likes what you put on the table.I was told by two different people to add the brown sugar after the rub. It did not taiste too sweet. I'm not big on sweets, so I would not like it if they were too sweet. They were great. As from the picture you can see the black bark. My wife was unsure by the black at first, but now she loves the bark. The kids are getting there. I did add mustard when I did my pork butt last week.
Thanks
Mike
Rick