I think I have named them all individually but no matter what string I use for --hfa-options I can't get it to load. Can you write me an example?

Thanks

--hfa-options Set hashfast options name:clock (comma separated)

This command allows you to set options for each discrete hashfast device by
its name (if the firmware has naming support, i.e. version 0.3+). Currently
this takes only one option, the clock speed, although future options may be
added.
e.g.:
--hfa-options "rabbit:650,turtle:550"