Seven inputs — glass type, panel age, method, debris load, chemistry, wipe surface, pre-rinse state — assemble a calibrated risk score. The math tells you whether the panel is in the safe band, the caution band, the high-risk band, or the documented catastrophic-failure band.
one or two inputs are working against the panel
Risk score: 30/100. The combination is in the caution band where occasional scratch incidents have been reported, mostly under the grit-on-paper-towel or dry-panel modes. The adjustments below identify which inputs are contributing the most points; addressing the highest-leverage one or two usually drops the score into the safe band without changing the working method.