I use wrist straps attached to it via jump ring.
Plus the shape of it can be a kubatan device for self defense. Tony could have easily drilled the tailcap for a lanyard without the cut out but chose that shape as a martial arts tool.
I'm not sure how to describe this, but my new MiniMag tailswitch from LITT is essentially cross-drilled strategically through the housing and thus does not have the cut-out you mentioned like the stock cap. The cap is essentially perfectly smooth all around. Therefore, it's there if I choose to use it, but it's barely noticeable visually, and almost can't even be felt with the fingers. Best of both, I guess. Plus, I HAVE A PROPER SWITCH NOW!!
As an aside, many employees at the factory I recently left, most of whom carry and frequently use flashlights nearly-constantly (as I do) as a required part of their duties, generally use wrist strap devices. If they drop those things, it is more likely than not that they will land in a VERY bad place - such as under some part of a giant extrusion press or in the oil pit below it, or into the breech of the press, or other places where dropping a flashlight into such could literally be dangerous...... (it's a hard-alloy aluminum extrusions company). Many used MiniMags, and many of those have probably been replaced by LED MiniMags by now. You'd find lanyard things on practically all of them I imagine.
If I drop my at the wrong time (and I'm exposed to even more and worse places to drop one than they are), it might (for example) go straight into a huge, ~100 ft. deep quench or rinse tank in the ground (directly under a ~100 ft. tall heat treat furnace (not to mention off the top of said furnace or oven with people on the ground around it). It would never be seen again by man or beast! Then there's stuff like riding the catwalk bridge of an overhead crane across the production floor area many feet up with people potentially underneath me. If I drop anything, I could be in very serious trouble.
That said, do I use them? Never. I find that while they could save my light in some situations, they are also a handling
liability for me in practice, thus I don't like the tradeoff. When I've tried they were always either hanging up on something themselves, or getting other things entwined in them to even worse effect. They can of course also become hung on or entwined in moving machinery / parts; the kind of place I am not generally allowed to work, but sometimes must. People have had hands / arms pulled into some nasty machinery in industrial environmenats by such things as a lanyard, with horrible results. That's a heavy industrial example though, and most reading this aren't functioning in an environment anything like that.
However, that's why they come with a such a hole from the factory. You and I may never use them, but
many people certainly do.
Always bloody tradeoffs, and often situation-dependent!
EDIT: Perhaps oddly, I do use the wrist straps on my small point-and-shoot cameras though.
