An integral power steering apparatus includes a stroke limiter. In particular, one grouting tool according to the invention includes an elongate tool blade, which may for example be a squeegee, a hollow flexible tube, or a solid, flexible, generally round member, attached proximate to and extending along the fifth digit side of a glove. , one or more slicer outputs taken at or near the center of the eye and one or more slicer outputs taken at or near the leading edge andor trailing edge of the eye, are processed in a manner that reduces the bit-error rate relative to the prior art.