We've currently got both detached sheath and attached sheath
Both of these have implications legitimizing them, but I believe one of them is redundant. From my experience detached tends to be the norm for sheaths, I'm unsure if the post count disparity between the two is due to detached being much more common or well known. Either way I don't think we need both, if one were tagged better we could toss the other out the window
If there's a desire to keep both I'm going to start a tagme project to hopefully get both better tagged (currently <3% of the 90,000 sheath posts have either tag)