You're welcome.
I made my recipe at first with just TFA BNB, TFA Banana, and Sweetener while doing a 100 Drop Taste test. It was missing something in the taste, when compared to real, baked, banana nut bread though. So I checked many other recipes online and noticed that TFA Butter was used in quite a few, and surprisingly TFA Vanilla Swirl was used in several, too. Once I added those 2, it finally had the taste I was looking for. So, I just stuck with it.
I know some people don't like to use TFA Butter though, because it's one of the flavorings with trace amounts of Acetoin & Acetylpropionyl in it. Usually I try to avoid them or use the TFA DX or CAP V2 versions of flavorings when they're available. In this recipe though,
for me it was worth the difference it made in the taste, to go ahead and use the small amount of it. So far, it's the
only recipe I've used it in.