MBP 15" core i5 battery calibration

Hi
Last time I bought a MacBook, it came with a detailed instruction on how to calibrate the battery for maximum performance. When I got my MBP 15", 2.4 GHz core i5 recently, it came without such instructions. I thought that might be because the new line of MBP's doesn't need the calibration anymore, because of new battery/overall design? Or should I still calibrate, with instructions found on the net? Is it still true that one should let the battery go flat, before recharging?
Message was edited by: pbholmen (typo)

Conditioning/Caring For Your Laptop's Battery
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    Message was edited by: JDee

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