Resistivity logging tool module systems and methods enable efficient logging string assemblies and logging operations. The heating tool has a billet loader which allows a plurality of billets to be loaded into the top of the tool and which billets then pass downward into a magazine and the lowermost heating area of the tool to rest on a billet retainer. The damper may include a damping layer that is attached to a first plate and a second plate. Which of a group of clients is affected by update of the first record is automatically determined. , sodium, content of colloidal silica is reduced, coatings prepared from such colloidal silica and applied to conventional ink jet recording sheet supports provide a specular gloss of at least 30 at 60\xb0 C. A portion of each of the lead wires is passed through a U-shaped notch in the wiring board, and a loop portion, formed at another portion of each lead wire, is loosely fitted on a projected piece portion of the wiring board.