Trying out some of the new paints and one of the dry panels, not as slippery as I thought, actually it's quite absorbent probably because of the oil prime.
I've coated a couple more with a layer of red oxide and some medium, we'll see if that makes any difference once they're dry
First try with Michael Harding Prussian Blue (nice) and Old Holland Green Earth (nice), but wow - the Williamsburg Nickel Yellow is great !