I'm still hoping to find the Labor Day, September 2, 1986 episode where Casey helps delivers Kim's baby and Craig finds Sierra at Foxwood Lodge. It's the episode before the ones posted above by @victoria foxton.
Finn Carter had to be one of my all time favorites growing up. Like @DRW50 mentioned, she made subtle transitions in the character trajectory which made it all the more realistic. She sort of reminds me of Kathryn Hays as far as subtly and deftly delivering just really great performances, which unfortunately is not usually rewarded by soaps, that seem to reward bombast and performances that veer into the maudlin (there's room for that too, don't get me wrong). Soaps are just not known for championing understated performances, however great they are.