Kozy came up with a very interesting invention; making the oem brake booster adjustable. I call it the "Kozy Adjuster". The "Kozy Adjuster" allows micro-adjustment of how much vacuum is used in the booster by bleeding off excess vacuum. Allowing the user to adjust the pedal feel to their liking, one twist at a time.
I have installed this Kozy Adjuster and LOVE it! Its under $100 USD to build and its easy to install.
props to mr.Kozy for thinking of it