Besides the basic barbecue sauce in the recipe, I do a lot of plays on stock/wine, aromatics and herbs; usually with some sort of butter finish if it's going to the table. Sometimes these are structured with tomato paste, sometimes not. These sauces are often takes on demi-glace based classics, sometimes not. Sometimes I do use demi-glace but am not as regular about keeping my stock up as I should be. We go through a lot Worcerstershire sauce, and a fair amount of Maggi.
Are chutneys and compotes sauces? Relishes? They definitely aren't mops. Different ones work with different meats.
I mop fish, pork and poultry with maple syrup, butter and bourbon sometimes. Pork, sometimes with pure apple juice.
I also spend a fair amount of cooking time trying to break down flavors into amounts and techniques which can be formalized into the "perfected" (funny word for it) recipes I write.
BDL