Yep, that is some fantastic work you have been doing EngrPaul! JJH, I think it is an individual thing as to whether the flicker from PWM will bother you.
I've got a Jetbeam C-LE, which has the lowest rate on the list (which means it's probably more apparent than the others), and it doesn't bother me at all. I can see it if I look at a moving fan for instance, but in normal use it's not something that bothers me at all.
Seeing that the Huntlight is more than double the C-LEs rate, I have a feeling it isn't going to be a problem for most folks. Of course, it just depends on how sensitive you are to it. Any kind of PWM drives some folks bonkers.