Crucial Ballistix PC2-5300 - OC Limits?

Folks out there, have you used this memory as I've just purchased this as it's got good reviews stating it can be overclocked easily and with standard tight timings, CAS3. They do seem to have the fabled Micron D9GMH chips.

So, what's been your experiences with this generally, when overclocked and what have you hit and at what voltages, as it states the stock voltage to be 2.2v. It does seem high but all the Ballistix range run high stock voltages (2.2v), should I be concerned?

I am running an E6750 on a Gigabyte P35-DS3R.

All comments would be much appreciated, thanks.

I ran mine upto around pc8500 speeds.. maybe just 1000mhz at 5-5-5-15 ..stable and happy at 2.2v (which is fine..its what its designed to run at)

Always have a fan blowing on them, they will last longer.

Thanks!