Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. The first bit lines are associated with the first column selection signal line. The upper member being an elongated tubular sleeve having a first end communicating with and supporting the umbrella canopy, an axial lumen formed within the elongated tubular sleeve, and a second end for receiving a pole standard into the axial lumen.