XT BB ??

How tight should i do up my shimano XT BB, i have a pedro's spanner to do the job but alot of people say different things such as," As tight as u can get it the loosen it with a quarter turn" any ideas ???
Thanks
Thanks

2010 Orange Crush Custom
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HT2 or earlier?
the info in on Parktools and in the manual.
Parktools :?:SheldonBrown
http://www.bikeradar.com/forums/viewtopic.php?f=10017&t=12715848
Parktools :?:SheldonBrown
http://www.bikeradar.com/forums/viewtopic.php?f=10017&t=12715848
FREE KONA KULA WIP
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