rollerski stability, NNN III

Anyone ever lubricate the footplate on their rollerski
bindings?

I've noticed that it improves stability by giving me a
a more dependable inter-lock between the sole of my boot
and the rollerski.

I usually use maxi-glide spray for "no-wax" skis on
the heel plates of my rollerskis. That works well.
Today I tried bicycle chain lube,
White Lightning "self cleaning" wax based lube, which I
hope is relatively safe to use on plastic. It seemed
to work just fine.

This was never an issue when I used NNN II, but now
I have NNN III on my rollerskis and certain stability
problems. Anyone else notice this?