Does anybody know how long it can take until all the GAM-Ad-Slots are filled. I put the code up, 24 hous ago and 40 percent of my pages remain without ads. When I use the adsense code 100 % are filled. And something else: In GAM you can choose 10 or more channels for a slot, while in adsense you can only choose 5. Does anybody know if adsense uses all the placements chosen in GAM - Or only the first 5 ?