Grayscale calibrated quite well, with an average Delta E of only 1.2 in low lamp and an even better 1.0 in high lamp. The RGB balance was also good and other than a small bump in red at 40-60 IRE, was consistent across the whole IRE range.
As with prior JVC projectors, I used a higher custom gamma value to get an average of 2.2 or above. Using 2.3 yielded an average of 2.26 in low lamp and 2.2 in high lamp. Gamma was also pretty smooth throughout the range. There’s also the ability to do custom gamma adjustments, but the presets are very accurate.