5960X Overclock Voltage too high?

Hi,

I've had my X99 OC15 Overclock bundle for a couple of months now, and everything is still going strong, however I've looked online and it says that the "normal" overclocking voltage for the 5960X is 1.3V to get to 4.4GHz (it actually says 4.5GHz is average for this).

However the overclock applied by Scan was 1.375v - isn't that a bit much? Since I bought the bundle so soon after the release of the X99 and 5960X perhaps the technicians were being a bit generous? Any recommendations on what I could reduce it to? The other thing that was changed was the System Agent Voltage Offset, which is set to 0.300.

Thanks

Alasdair