J. Kissel There are several front end models with out-standing SDF diffs prior to the timing system upgrade boot fest. I attach screenshots because there's no chance we can reconcile these before all front ends go down. Models with the biggest collection of DIFFs: h1pslfss h1psliss h1pslpmc h1asc h1lsc h1sysecatc1plc1 h1sysecatc1plc2 h1sysecatc1plc3 Hope this helps us in the recovery!