If we look at this another way, the wrist thong option is not really about a thong, but about a lined hole (plus a few cents worth of paracord). With the hole installed, you can choose either to thread a thong through, or NOT use a thong. If threaded, your options are either to loop, or to avoid looping by tying, braiding, or something else.
So, having a thong hole offers more possibilities than not having one.
(That said, I prefer having the hole, then choosing whether or not to use it.)
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-Steve
RKCC CM-066
RKS #258