THANK YOU Hans Joakim !
I used the rice flour in a linen lined basket and WHAT a difference. Sunddenly, as you said, the loaf comes out like teflon and the slash...well all I can say is WOW ! I used about 1 tsp of rice flour and lightly rubbed it into the linen napkin. I turned the shaped pain de campagne into it seam side up and waited 1 1/2 hrs, preheated the iron pot for 30 min at 500 and then turned the loaf out and slashed. Placed in pot/closed/reduced oven to 460 and baked for 30 min lid on and 15 min lid off to 207 degrees.