Thank You @Ajoure.net
Here are some from the website you referenced:
The first one shown is the telescoping tubular one I'm complaining about.
The other ones look alike in that they seem to have wings, except the tuxedo stud back looks like it only has one wing. Where is the spring located in these winged mechanisms?
Does the security of the winged mechanism depend on the second wing staying locked down until the first wing is released?
Having big buttonholes probably requires the ornamental part of the stud to be as big as the buttonhole, just like ordinary buttons and buttonholes. But I've seen big gold studs in action, and don't think they enhanced the overall look of the monkey suit. It doesn't seem like 3 studs would make that much of a difference.
Maybe reducing the size of the buttonholes would be a loss prevention solution, other than buttons on twill tape which is still a size issue, and if he lost the entire tape he'd be styling his wife-beater between the bow tie and cumberbun.
Back to the original topic,
here are some images of different cufflink mechanisms