The handle thickness may be a problem, its very thin. You need it to be stiff so the limbs only bend into the fades. I'd glue a piece on the belly side of the handle. Otherwise I'd be afraid it woulc either crack or bend enough that you'd get a crack coming in from the fades. You have to keep any bending from reaching though the fades on both ends of this design, twice as tricky as a conventional tiller.