I joined the many who are changing from briefs to jammers for swimming. (There are too many people I know where I swim. I was afraid that I was scaring them!!) I found the jammers not to be as comfortable, not as snug. But I noticed something. And I am wondering if this is just my imagination. It felt as though the jammers kept my legs higher in the water. (I've noted the same about my tri-suit.) I was worried that my times would be slower. But they weren't. Actually, they were a small bit faster. Do these jammers tend to keep the legs higher in the water and thus reduce the drag that the legs falling down cause?