Well, for those that have seen my posts...
I've ridden a 6'2", 5'10" and 5'8" Sweet Potato.
I bought the 5'10" after testing out a 6'2" and a 5'8" in good So Cal surf. Then I got it in what it's made for, gutless 1-3 foot slop, and found it too big.
Sold it to a beginner friend (perfect for him) and ordered up a 5'6" with Futures Controllers.
She came in today, and the idjuts sent me a 5'6" rapid fire with FCS!!!!
So for the time being, I'm using 2 sets of full size fins from my older thrusters. I'm planning to order the Indo fins as they are about as close as you can get in FCS to controllers.
Testing it out tomorrow, and we'll see how the little gal goes.
Thanks all for the advice so far.