To help avoid problems caused by out of date safe.snaps, I went through and changed the symbolic links for safe.snaps for some models to point to down.snaps  Since most of these down.snaps were not in the userapps repository I copied them to userapps, and commited all the burt files to the svn in the relevant directories.  The I removed the down.snaps from the target area and made symolic links called down.snap to the down in the userapps repository that will be loaded when the guardian runs down. 

I did this for:

omc, lsc, lscaux, asc, ascimc, alsex, alsey, iscex, iscey

This means that from now on at least for these models there is one fewer sdf file to worry about.  It would still be good for anyone restarting models to be aware that the down may not be up to date, and either update down before restarting or do a burt to make sure that you are leaving things the way you found them.