Your /scripts and sensors directories should be in sync between the N number of appservers
ah, thanks, caught the grammar, didn't catch the sensors directory.
I stole this off the wiki:
There are a number of files that should be synchronized between application servers sharing the same database that are not on the file server.
<OM>/br/xml/cli - any custom commands
<OM>/share/sensors - security sensors, other custom scripts
<OM>/scripts - custom grammar files
<OM>/br/config.xml - application server configuration
<OM>/br/tpasswd.conf - should only need to be copied during install