Help: Slow Crucial C300 256GB SSD in 17" MacBook Pro (2011) via SATA III 6Gb/s

Computer: 2011 17" MacBook Pro
Drive: Crucial C300 256GB
Drive Firmware: Revision 7
Bay: Main Drive Bay (6Gb/s)
OS: Lion 10.7.1
I did a fresh install of 10.7.1 and I'm getting these speeds on the above configuration:
Here is the same test run on my previous computer, a 2008 Mac Pro, with SATA II (same exact drive):
What is going on here? The Mac Pro with SATA II was running the C300 faster than the brand new 17" MacBook Pro 2011 running SATA III. This drive should be getting up up to 355MB/s read on SATA III.
Can someone please help me figure out why this drive is not running faster in my computer?
Thank you in advance.
FYI - I did install the new EFI 2.2 Update that was released in September. The above tests were after I installed the update! So you can rule out that I didn't install this update that supposedly fixed SATA speed issues on these Mac's.

I solved it. Xbench didn't give the best results. I tried other benchmarking tools and concluded that I am getting the SATA III speeds on this drive on this MacBook Pro.

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Link Speed:
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X21100RL
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143631400200
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32
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Detachable Drive:
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disk0
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Solid State
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EFI:
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disk0s1
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EFI
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0E239BC6-F960-3107-89CF-1C97F78BB46B
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347.42 GB (347,417,059,328 bytes)
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disk0s2
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Apple_HFS
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FA84107F-322D-37F3-BE2F-779C43F45EAB
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164.86 MB/sec [256K blocks]
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35.20 MB/sec [4K blocks]
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205.66 MB/sec [256K blocks]
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133.98 MB/sec [4K blocks]
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