Base Layer - CH04X. As an option, sprinkle on LF03 Cold powder and iron in with the CH04X.
Fluor Layer - no Fluor top coats are recommended in these very cold, fresh, wind blown snow conditions.
The key to fast skis in these conditions is a dedicated cold ski with a hardened base, fine grind and CH04X.
This afternoon (Thursday) I did glide out and uphill feel tests using 3 pair of cold skis at Ashwabay. The conditions there is similar to Ironwood, with lake effect snow. and temp was 1F and cloudy.
There is a surprising amount of moisture in the snow using the 'snowball test'. Whether it was differences in grinds or the flex, both straight CH4 and CH4 / LF3 were close and felt slippery, with a slight nod to straight CH4 for my skis.
FC04x pair felt slightly draggy and it is just a little too cold for a fluor top coat.
Binder Layer - VG35
Kick Layer - VR30
Optional - V05 Polar, very thin final kick layer corked in. This helps with glide.