I can respect that. If you have a comfortable setting, why change it?
Track time and experience, is the first step to speed. Trying to continally go faster, is why we do this.
My setups would be be radical , IMHO, if it was untried. The speed increase is the result of working towards allowing the rear tires to do more, reducing the front tire loading.
Physics cannot be cheated. If the rear tire has more dynamic loading, than by deduction, the front tire has less. If the front tire has less, it can go faster, before becoming overloaded.
Does the DRS have negatives? Yes, it can be less precise than a hard rear end.
The same goes with running more rear tire pressure, along with less spring rate. It rolls cleaner, therefore it must be faster.
The zero scrub? Same thing, it rolls easier. Will you need to refigure and experiment with springs and tire pressures to get it all working. Yes.
Goodluck, MM