The issue of Concurrent External Backup

After performing Concurrent External Backup and restarting the instance, if I want to perform an incremental backup of Concurrent External Backup again.

Should I redo the following steps?

1.  Do CLRINC^DBACK("QUIET")

2.  Set x=$$BACKUP^DBACK("","E","Dirty external backup - incrementals must be applied.","","","")

3. Set x=$$BACKUP^DBACK("","I","Nightly","test.bck","N","bck.log","QUIET","N","Y")