Iron in the CH4x with an iron at 155 C.
It may take 5 or more passes of the iron to melt the very hard wax.
Scrape, make 2-3 passes with the steel brush, followed by the medium bronze brush.
Finish with the horsehair or boars hair brush, then the blue polishing brush.
A dedicated cold grind ski with numerous layers of CH4x ironed is recommended in these cold squeaky snow conditions.
Note: CH4x ran excellent in similar conditions at the SISU Marathon last weekend.
Binder - VG35 ironed in
Kick - VR30 corked in
Cover - V05 Polar