Shower Waterproofing

I am installing a shower with the following products:

Walls:

Go Board

Go Board Sealant

Kerdiband

Shower Pan:

Schluter Ditra Heat Uncoupling Membrane with heated floor cable

Schluter Waterproof Sheet Membrane

Schluter Kerdi Linear Drain

Kerdi Preformed Corners and Kerdiband

Thinset:

Schluter All Set

My question is whether or not people apply a liquid membrane over the Schluter Waterproof Membrane in the pan or on the walls?

If so, what liquid waterproof membrane are people using?

At first glance it seemed reasonable to apply Ardex 8+9 over the pan and roll it up the walls, but I want to be sure before doing anything incorrect.

Thanks,

Sam