I suggest you 3-2-2-1-2. bcause your opponent so weak in the middle, and dml/dmr to block his wings. And 2ST work well, for 5defenders. It's seem like this,
-------ST--ST--------
--------AMC-----------
-----MC-----MC-------
--DML----------DMR--
-----DC--DC--DC------
P.S. : I'm never against that formation, i'm just give my analysis.