P5B Deluxe OC'ing this RAM: OCZ DDR2 800 PC6400 4-4-4-12

What settings are people using to overclock this RAM (OCZ DDR2 800 PC6400 4-4-4-12) on the ASUS P5B Deluxe?

I have a 2x1GB kit and am overclocking it by 3%. But it's proven good for 6 hours of Orthos Blended Test. Can it get much faster?

Currently I'm using DDR2/800, 413 FSB, 2.1 vDIMM, and 4-4-4-12-5-35-10-10-10-10. So this is only like a 3% overclock. I think 2.1V is very safe as the RAM is designed for 1.9-2.1 but the MFG says its safe at 2.2.

My northbridge voltage is 1.45 and Asus Probe II shows MB temp of 28-29 generally. I don't think it matters for memory settings but my BIOS is 910, CPU is E6600 with 1.3875V and 8x multiplier = 3304 MHz.