Thanks for that very thoughtful and helpful response, Kate.
If it helps (and I should've asked in my previous post), my number of employers is 3 but my number of jobs is 2 (same role but in very different parts of the same industry). Not sure if this makes a difference.
I love your point of having one of the recommendations come from my previous employer. I have someone in mind, but I am concerned that this person might've forgotten everything but the more general highlights of my career. Thus, I was leaning more towards a recommendation from one of my current clients who can speak with more detail and can provide a perspective my supervisor cannot.
In your opinion, will it be more valuable for me to ask for that 2nd rec from my previous employer anyways, or should I go forward with a recommendation from one of my current clients, given this particular part of my background?