Tyre pressure

I know there has been a lot of discussion on the correct tyre pressures for the various models of asx BUT can anyone shed any light on the pressures for the new ZC version?..I have the 1.6 petrol ZC with 16" alloys and the owners manual is stating 38 psi which seems a little high..there is a definite "bounce" to the ride as well..anyone have experience on changing pressures ?..only just bought the car and loving it so far.
Any suggestions welcome...and thanks

! have 17" wheels and handbook states 32psi however with the edge wear problem 35psi is much better and some online pressure people also give 35psi. I saw that this also was recommended for 16" wheels. 38 does seem a little high.