When hosts ask particular sizes of models, I find it very helpful. It helps you to see if maybe something is running small or large. I also like it when they tell if something is fitted or relaxed. With all the confusion of sizes, I think it helps tremendously. I particularly like when Meredith (petite model) is on as I can always go by how something is fitting her and size, length and fit. Of course I have no relation with all the tall, thin models, except for length.