The Survivor's Shoe DOES NOT give its 5% Demihuman Reduction at +0 or Above.
The Survivor's Shoe's Set Bonus with the Survivor's Mant DOES NOT give its 5% Demihuman Reduction.
The Survivor's Shoe's Set Bonus with the Survivor's Rod DOES NOT give its 10% Demihuman Reduction.
Another Post here says that the 20% demihuman damage bonus does not work. But I haven't verified this myself.