Wow, thanks! You have a good point about the newer firmware...since these are S3+ units I'm on the latest rev, which doesn't respect the settings in the asic-freq file. Does anyone know a way to change frequency in the latest firmware without using the GUI?
Oooh I second this question - I'd love to find a way to be able to do this via script. I have scripts that push out the pool configs and other things, and the ability to do firmware via scp and ssh commands would be awesome.