Basically against a 40/30 I'm going to be getting all of these in. That's soooo loose for a FR player and it's very unlikely he's a winning player with those stats unless he's absolutely amazing postflop and I have yet to see a player like that.

1a/1c, call, give some rope, check on turn.
1b/1d, call, with those stats it's v likely he's shoving more than just sets.

2, call if he bets ~3/4pot to pot. Raise smaller bets. Be more inclined to raise on the drawy boards.

3/4 I am much more likely to raise these as there are more hands that we beat, there are more bad cards for our hand etc.