G'day BEXIL - I understand... but regardless of transition levels and your display settings, I still don't think that the pressure setting within the aircraft will alter your display.
When VFR, I believe people should fly quadrantal/semi-circular levels (as appropriate according to jurisdiction), maintain a good lookout(!), and where possible get extra information / separation if available from ATC services. The only way to do better is to remain IFR within controlled airspace!