Thanks Ian for the nice encouragement. You are exactly right on the ending. In fact, on quite a few of my songs, I've struggled with the right BIAB ending. In some cases, we all end at different times. The end of "Santa needs a bailout for Christmas" has that effect. In some cases,it gives the song a human feel. The end of the song I just mentioned has all the realtracks sounding like a live band just messing around at the end. I hurried and put a long piano run at the end too! I liked that effect in that case but I do need to experiment with alternate endings more.
Another thing that happens is I record the paino as a midi part with a softsynth. Sometimes rendering audio will cause the sustain of the last note to end prematurely.
That is something else I have to figure out.
Thanks again for the great tips.

RodM