The point is that we have to buy raw extrusions. These have minimum runs in the thousands of pounds per die / shape. This material is received here unhardened (they are in an annealed state from the extruder). The concern was for the extrusion not to be wasted / damaged by corrosion or not bend properly (such as the 14,16, 17 and 18 crossbars). We first machine and then send for hardening and anodize. In the case of the 20, the concern is mostly corrosion, the material will have cosmetic blemishes that would be unacceptable. In the case of bending, the material will actually begin to harden naturally and at some point it will not bend properly and sometimes kink. We would have to spend labor on materials that would not be used. That raises the cost per boat to an unreasonable level.