Methods and systems are provided to increase or optimize the illumination used with a sensor to measure printed ink colors on a substrate at high speed and high resolution. A slurry composition is prepared by mixing the additive composition, a polishing particle composition, and water. The base wafer for the ASIC device used in the prototype package and base wafer for the volume production ASIC device may be the same. The septum and housing are designed so that septum will not be rotated or removed from the housing when the connector is accessed by a male luer taper. The SAR converter converts the output voltage to a digital value representing the capacitance being measured. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle.