I’m only about 5.3” mid girth, with about 5.7” base girth, and I have trouble with regular condoms, they are usually hard to roll on, and even harder to roll down all the way to the base, not only that, but they always seem to roll up during sex. I have found that Magnum’s work better for me, as I can roll them on easier, they are snug, but not incredibly tight, and they stay all the way down on the base with a good seal. Obviously it helps that I have a bigger base, I’m not sure if I would use magnums if my base was only 5” to 5.3”.