yes to all those. With a Gaff you just put it where you always put it, below your pelvis slightly hanging between your legs., the V-string may have a pouch but it is squished in front. Basically they are just tight underwear so you put it where it is most comfortable for you. The same would apply to Jacquiline's idea. If you don't like tucking pulling it between your legs isn't a good option, you'd walk like a duck then