Let's go
So, what the weakness of 3-2 zone, one time in paint defense is high and have blitz on PG?
Firstly, against 3-2 zone, whatever if you play with a fast or slow tatic, you need a High Passing Skill
To a slow tatic add Handling high too, one time you need to keep the ball more time with you.
Independently the level of your league - if a I or IV - you need Passing and Handling proportionally equal or better OD of adversary to have more chances to win this battle.
I remember too 3-2 is a slow tatic, like manual says. Knowing this, I believe fast ofensive tatics as better as slow.
But, how to stay way paint defense?
If you think have better IS & JS against ID & SB, play with Look Inside
If don't, you need play with mid-range tatics, like:
1 - Motion;
2 - Push The Ball; and for last
3 - Patient
This is my opinion about play against teams with 3-2 zone