each hanger can do his or her own thing - but by the time one adds the skills, hardware and time to accommodating too short a hang distance, they might as well have forgone it all and opted for webbing and rings instead of whoopies.
this rings true when you know what your environment will be, or are limited to your spot selection: i.e. your favorite, (and only) spot to hang on the local trail, or, an improved campground, or your backyard, or fitting multiple hammocks in close proximity
if long distance hiking, its not so much an issue, as you have a great pick of hanging anywhere.
but as soon as there is any chance of a limited hang site... webbing and buckles is the way to go in this hangers H.O.