SharePoint - Hard limit on # of calculated columns in a list?

Has anyone by chance hit a hard limit of 51 calculated columns in a list in MOSS2开发者_如何学Go007? Is this documented anywhere?

Thanks.

Here is the column limits for MOSS 2007: http://technet.microsoft.com/en-us/library/cc262787.aspx#Column For calculated it says you should be getting 48 calced columns (8 per database row and the default situation is to use up to 6 database rows to represent 1 list item).