The 'Kinman' mod is just wiring the bleed capacitor and resistor in series instead of parallel. Different people have different ideas on the optimum cap and resistor value, but a 0.001uF/1pF capacitor and a 130k ohm 1/4 watt resistor seem to be the most popular.
In the diagram below, the first option is simply a capacitor, which works but can lead to the tone getting a lot brighter as the volume is reduced. The second is a capacitor and resistor in parallel, which is the Seymour Duncan/StewMac/PBG kit version, whilst the third is the capacitor and resistor in series and is often known as the 'Kinman' version.
I tried the second one on a Strat I rewired recently and that worked nicely, but the Kinman version would work better on a two-volume control guitar. Wazkelly found out with a Jazz Bass (where there is no selector switch and both pickups are permanently in circuit), that the standard treble bleed kits caused the volume drop-out when one pickup volume was turned right down (to select either just the bridge or neck pick-up), which caused me to start looking into these things.
There is a lot of stuff out there on the web about these bleed circuits, and there are quite a lot of variations on values, plus more alternative circuits, some of which seem rather OTT, in search of technical perfection.
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