PST Migrator Task, move Temporary Files Folder

Hi,

Looking to move my PST Migrator tasks, Temprary Files Folder. I've found http://www.symantec.com/business/support/index?page=content&id=HOWTO96225 which says stop services, move folder and update the path in the VAC.

Anything else I need to do?
Any special folder permissions?
I currently have a value of "\\EVSERVER\J$\PST TEMP", hoping to move it and remove the drive letter 'J$' reference, any DB changes? will existing PST migrations resume?

(being very cautious but a very live system and no test environment right now.)

Thanks