yeah, I have heard of that rule too, I just wanted to see how low i could get these sticks, while still being 24/7 stable. Well, 24/7stable is a little lie, my current rig fails orthos after approx. 2 hours.
I plan on setting tRAS up to 8 again today, and i may try to get a little more freqency on these.
Hopefully i can get my rig to be more orthos stable, so I can overclock it further...