Most sgians dubh are handle-heavy, since they have such short blades. They really aren't designed or intended to leave a lot sticking out the top of your hose. The clan crest styles (or others with decorations on the side of the handle) are a bit of a waste, since they need to be pushed in so far that the decoration is hidden.

Even my stag-handle sgian dubh always stays put in my hose, because it gets pushed far enough down to have the center of gravity well below my garter tie.