Hi dbastin, Yes the tech spec onsite does need a tweek re the 12v output on the K30. The K30 does have the HSL80, this single supply runs the two boards inside the K30, so having it run a third isnt all that ideal, so using a dedicated HSL50 in the S60 for the S20 is the better way to go.
Very interesting powering router etc from the S60, this would likely be beneficial.