Yeah motocrash explained it pretty well.
Everynow and again you can get a batch of the regular sause that seems a little spicier than normal but I noticed that the heat level seems to go down more the longer it is in the fridge. Honestly I think a lot of the heat comes from the good cracked black pepper they use versus throwing in a bunch cayenne or something like that.
Rudy's is my favorite BBQ sauce/sause by far. Very savory, has sweetness but not overboard, and has the other tastes and complexity that are done perfectly to give the most amazing flavor.
I wouldnt say it is an "even blend of flavor" but more like a sauce that has a variety of highlights or taste "features" where none of them over take the other yet all can be greatly appreciated and enjoyed. It is a synergy of flavors I guess hahaha.