What are the measurements on the rear sway bars you are using? You can calculate the wheel rate of your rear sway bar and up your front roll rate by a proportionate amount through larger TB's or a larger front sway bar to get to neutral.
To answer your original question, rule of thumb is to lower front tire pressure or raise rear tire pressure to decrease oversteer. Never used it to tune overseer/ understeer myself; and obviously you can go too far. Try 32 front 38 rear. (I don't think just tire pressures will get you where you want to go, though)
Ahhhh no. Lowering your front pressures is not correct. You are carrying a large % of your weight up there. I have concluded after much testing to use opposite of that pressure. We run 38 cold in the front with Super Sports (43 hot) and 33 rear cold (36-37) hot.
I run very similar to you- 38 cold front, 34 cold rear (thanks Kevin Wesley).
I don't think 32 front 38 rear is 'good', but it's the answer to his question. What to do with tire pressures to get some oversteer out of the car. A band-aid that will take grip away from the front (at least going that low took grip from me on a Skidpad with super sports). Not a viable long term solution.
Once again I haven't done this. Just answering the question based on limited experience playing with tire pressures and the old school rule of thumb based on what to do to adjust handling.
