Yes and No...Both add flavor, both add moisture but the combination gives the opportunity to layer flavor. The finishing sauce you chose is very Sour with Salt, some Garlic, Onion, Black Pepper and Cayenne for Heat. Injecting lets you add Sweet like Maple, Apple, Molasses, and/or Honey with Herbs and Spices. Finish the flavor profile with Smoke, based on wood choice, and the Pulled Pork is uniquely yours...JJ