Given the findings of SUNSET, demonstrating 60 Gy in 8 fractions to be a safe and effective regimen for ultracentral lesions, in what situations would you elect to use a 10 fraction hypofractionated regimen?

Style point, I'd say. Both are pretty similar biologically. Those with some Houston in their academic genes are probably more likely to use the 10 Fx regimen (my personal choice for ultracentral), but I think 60/8 is an excellent option.