I've heard of Doaks, but I haven't seen those pastels discussed very much, so I'm ignorant of their qualities. Hey, a new pastel brand to experiment with? Not a problem.
I've just been on a pastel-making jag with my Wallis pigment doughs and an assortment of dry earth colors. I now have several dozen new sticks made in a flat triangular shape that I like very much. I may crush down and re-make some of my older sticks in that form.