A few other things you might want to try to squeeze more performance out of the SSD:
*A new firmware revision just came out for the G2 drives a month ago. You might want to try installing that to get a bit of a performance boost.
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*Install and run Intel's SSD Toolbox once every month or so. (
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Here's the same benchmarks I get on my drive (which is the same 160GB G2 Intel SSD)