Chef John has offered to make available to you the very mopping sauce which put him on the map in the world of barbecue.  This sauce is not meant as a tabletop sauce.  This sauce is specifically designed for use while smoking.  The sugars and seasonings carmalize to your meat and absorbs just the right amount of smoke.  Give this sauce a try before applying it to your meat then try it after the cook is done and you'll understand the complexity of the flavors evolve while cooking.