Has anyone had recent success at DI using zone defense.  If so, could your provide any thoughts on success factors.  Clearly IQ is number one, but what role do ath., speed, and defense play in the effectiveness.  In the case of any category, I assume the engine takes an average of pertinent categories but I can't be sure of that.  Also, has anyone had any success with 3-2 v 2-3 and do +/- setting have the impact they would with other defenses like press and man.  Lastly, what effect if any do double teams have in the zone compared to other defenses?  Thanks for any input.