I also made it and in general i always suffered when I used the 2-3... It's a pretty weak zone, the 3-2 zone compared to the 2-3 works better(I mean if you face an outside attack, 3-2 works better than if you face and inside attack and you put 2-3).
I always preferred to defend the best inside attack of this game in man to man than in 2-3(and the one we tried we lost the game).
Maybe the 2-3 zone works in lower divisions, but on matchs like B3, NT matchs etc it's always a trouble.
I just hope the inside box defense is good enough to be played.