I stubbornly have never used sinking lines. I've probably missed catching a bunch of fish but I'll never know...........for sure. A beadhead bait is the extent of my subsurface fishing experience. Even then, in the waters I fish, the deeper my nymph the more likely the take will be that of a Whitefish. There WERE times however, when I was fishing into the arc of an oxbow, that , at least a WF and a split shot line, would have been great to have rigged.
As I said. it's a "stubborn" thing.
Mark