Osage Orange is a wood I’ve always had a soft spot for, growing up in a part of the country where it was long ago adopted for fence posts, hedge rows, and was found growing in a solitary fashion in many a cow pasture, where one could trip over the “hedge apples,” or throw them at one’s cousin, or say “didja know these are poisonous???” while giving them a good smell (but definitely not a lick!) We have a chair in the family that lore says is Osage orange, clearly handmade, given by a long-forgotten wedding guest to my grandparents at their marriage in 1937.
It’s an exceedingly tough wood… hard, dense, resistant to rot and insects, destructive of woodworking tools, great for wooden archery bows… but in my opinion does not tend to win beauty awards. It’s not ugly, but when freshly sawn it’s a distinctive yellow color, which ages to a nondescript brown.
I know why you think it’s flimsy feeling, though. No wooden covers have the same weight or heft as bone, which makes a “bareheaded” pocketknife that is hafted with wood but has no endcap feel distinctly light, a feeling we associate today with cheap, modern, plasticky, material-saving construction.
Rest assured your Osage covers are tough and durable, though it’s not impossible they might develop a small crack or two as they dry or age. Mine did, on a #73 I bought some years ago. A drop of superglue took care of the problem.