I wanted to know the best way to test ads for different placements. For example I’ve always used the 1:1 ratio for Facebook and instagram ads which works perfect for feeds. When testing for 1:1 would it be necessary to remove the ads showing on reels/stories. And vice versa if I was to test the ratio of 19:16 should I only run this for reels/stories and eliminate news feed. What’s your opinion on this?