The package you have should be more than enough braking. No need to go spend money just to spend money, I would be curious to know pad compound as that sounds like the issue, BP40 compound for iron is best. The smaller master does in fact increase line pressure with effect of softer longer pedal. 1" master more the norm little stiffer pedal and shorter movement. I'm not a fan of scalloped rear rotors unless used in moderate braking applications, they don't like heat and will explode. For the little extra weight run a full .81 and will have no issues and will increase brake effectiveness by more contact area. The radial caliper is stiffer, smoother operation and user friendly for maintenance. Feel free to email me direct with questions.
Dbrzozowski@wilwood.com