Sorry, meant Andrew
Definitely go no higher than 10fps Andrew, at 30fps you're getting lots of compression and losing fine detail in the data. It may have looked worse at 10fps but there is more detail, and maybe you just had a bad patch of seeing at 10fps.
I haven't tried the raw/optimised colour mode for about 6 months, it's probably worth trying again to see if I can extract more out of it now that i've improved in my processing. At the time, I found I simply had to process the raw mode image harder to get a similar look.