  Since the charged mode is much faster than the neutral modes on quantum Hall
edges at large filling factors, the edge may remain out of equilibrium in
thermal conductance experiments. This sheds light on the observed imperfect
quantization of the thermal Hall conductance at $\nu=8/3$ and can increase the
observed thermal conductance by two quanta at $\nu=8/5$. Under certain unlikely
but not impossible assumptions, this might also reconcile the observed thermal
conductance at $\nu=5/2$ with not only the PH-Pfaffian order but also the
anti-Pfaffian order.
