Yessirree.
I never put rub on a slow-smoked pig. (For pulled pork)
However, here in KY, my dad is friends with this guy who makes excellent pulled pork sauce. When I say excellent, it is entirely an understatement, it is by far the best sauce I have ever tasted for pulled pork. (It doesn't hurt that they slow smoke their pork for almost a day in sweet, sweet applewood). They are a small business, but in less than a year, their business has skyrocketed from a roadside stand on Sundays to actually having a restaurant open on weekends. Order some and give it a try.
http://www.whollysmokerscookingsauce.com/buy_nowFor pork loin medallions, you use the rub.
Cajun Pork loin rub
2 tbs Cinnamon
1/2 tbs red pepper flakes or cheyenne
1 tbs Coriander
2 tsp paprika
3 tbs garlic salt or garlic powder
1 tbs onion powder
Salt to taste
Black or white pepper to taste
You can double or triple depending on how many pigs you are going to have on the grill.