I got the 390 Boss on my Team Series and it's a good set up. Bindings are soft, very adjustable (I went with canting 2) and best of all they're the most comfortable pair of bindings I've ridden.
I have used K2 Uprise and Flow The Fives on my MIP and both were nice matches.The K2 have the canting too.
Does anyone ride any of these bindings with 32 Lashed boots? Since I won't get to try any of these out, (though I'm starting to zone on which one i think i want) I want to make sure they will be compatible with my boots.