If I remember correctly, studies were done on the ability of the brain to interpret and understand data quickly using either an analog or digital readout. Time and speedometer readouts were the main emphasis of the study. The study showed that the brain interprets the analog display quicker and with greater accuracy. Besides the issue of running out of power, it appears that the analog display is superior to digital for information gathering and execution. Something to consider in going to an all glass panel. Perhaps someone that is up on this subject could elaborate?