(*side note, most batch 2's can hit 345 MHz no problem, so if you were expecting 66 GH/s you may be pleased to be surprised with 75+ sustained*)
One guy told me he has his running at 80.
Any idea what happens when you take it too far? Does it just lock up? or errors galore? perhaps flames start licking out the sides of it (joking).
So happy for you.
Can't wait for my own bright yellow van to pull up... they were here today dropping of some gear for building a new LTC rig... now i am expecting them again! w00t.