Thanks Oliver! That spot in trickleView.js ended up being what I needed. For a quick solution to start, I added the fadeIn directly above the Adapt trigger as follows:
$(this.$el).next().hide().fadeIn('slow');
Of note was that this.$el was pointing to the current block, not the block that needed the fading, so I used next() to get the next sibling. Then I just hid and applied a quick fadeIn call to the proper element.
I'll have to do some more testing to ensure there aren't any issues but this is very promising. Thanks so much!
Keith