Loaf one - combo 430º F lowest rack - minimal grill preheat - too dark and bottom not browned - had to flip it over and grill the bottom for 10 min or so. Loaf 2 - preheat baking for 10 min or so at 430º F - then combi 410º F for 30 min - bottom nice and brown. There is my 9 by 9 tile I use in the CSO in there underneath the parchment.