Adjustable Dee ring embodiments are disclosed that allow the saddle andor the billet or Latigo to be located in an optimum position on the horse. The first sleeve may have a variable inner diameter. Another method is disclosed for measuring the local electrical charge at specified points on the sample, and isolating and measuring the wide area electrostatic charge quantity from those local electrostatic charges. The strap is inserted through a fitting on the coupler of the railcar and received within the bore of a collar. A dielectric etch stop and diffusion barrier layer may be over the second dielectric layer, and a via may be over the first conductive region and through the second dielectric layer and the cap layer.