Changing a column collation - problems?

Hello,

I have a VFP database that was migrated to SQL Server 2012. One of the VFP table's PK's utilized uppercase and lowercase values to distinguish rows, which of course does not fly by default in SQL Server.

Rather than having to redesign this part of the application and go through a data conversion, I'm thinking of changing the collation of this PK column and related FK fields to be case sensitive. On the surface it sounds like this would solve my issue and the app would function as it always has.

Is there anything that would make me think twice about doing this?

Thanks.

Bill