Still just a beginner, but now I am controlling different mechanim states with the FSMs and the swim movement is much better, more intentional.... There's still a few who are dropping out of their Itween/FSM (the "drifters" that slide sideways) moving on to the next FSM while still performing the tween (or vice-versa, not sure which), but I'm kinda happy with this. Now I feel they are showing a little "character" rather than just moving around the screen.... This is my first Unity project that is 100% me, so it's simple but still feels like a milestone. YAY!
This animation is for a major theatrical company (video projection that opens Act 1) so there's no interactivity. This isn't the actual music - it was just handy on my itunes, and the screen capture worked out timing-wise... the final version will be under a minute, and it is intended to have some humor (not realistic).
For people frustrated with "How do I make my <thing> move..." problems, keep at it.
I was going nowhere in Unity for months, now I feel like I've taken my first step... Just keep trying all the actions until you understand what they do. And don't be too clever, do one thing at a time until it behaves exactly as you think it should.... And expect to rebuild it 100 times, which will help streamline it with each iteration.
Thanks for looking.