Nah mate that's ok NSW is a bit of a drive from home.
All I would say is a couple things, actually make that three.
1. Having the damper set soft makes springs feel softer. It is not a good thing however as generally underdamped springs tend not to handle as well as they should.
2. Same, same for under inflated tyres.
3. Hillclimb speed is usually about confidence. It is common to go seconds faster as you build familiarity with the circuit.
Anyway good luck to you if you are happy with your car & suspension. Just not sure 13kg and comfortable belong in the same sentence. Your car would have left the factory with a spring rate 3kg/mm or less.