Lance, agreed on all counts, to include comment on Jimmy's number #1.

Knives I carried in SW Asia never required drain holes. Even if you rinsed debris out the kydex liners, it would dry fast but you could never get it all anyway. I still have moon dust imbedded in the cord wrap of my main blade from back in 2007.

Back here it makes sense and is a worthwhile modification.
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Matt