A magnetoresistive readwrite head includes an integral top and side shields deposited on top of and substantially surrounding the multiple layers of the MR sensor stack. Such a functional group is introduced into its terminus at a high ratio, not via sulfur atoms. Systems and processes to oligomerize andor polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers andor polymers produced therefrom are also provided. Where color cartridge wear-out is projected, selection is made between faster printing and a reduced risk of color cartridge wear-out. A compressor, an air-cooled condenser, and a cooling fan are installed in the compressorcondenser unit casing.