Very valuable comment. If this isn't all, or even most, of the beta units then it may indeed be a loose heat sink or variance in manufacturing tolerance. This c

Very valuable comment. If this isn't all, or even most, of the beta units then it may indeed be a loose heat sink or variance in manufacturing tolerance. This can be far more easily (and cheaply) addressed than a population wide issue. It may also be the case that the thermal limit is currently set more conservatively than it needs to be. When every hardware unit is rare, costly and yet vital to gathering beta data, the choice to go extra conservative on thermal limits to prevent damage to scarce hardware deployed in the field seems logical.