You need VLSCMP and NOT VLSHRT to use on INCLUDE/OMIT.
VLSCMP specifies whether DFSORT is to pad "short" variable-length INCLUDE/OMIT compare fields with binary zeros. A short field is one where the variable-length record is too short to contain the entire field, that is, the field extends beyond the record. VLSCMP and NOVLSCMP apply to the INCLUDE and OMIT statements and to the INCLUDE and OMIT parameters of the OUTFIL statement. The compare fields are only padded temporarily for testing; they are not actually changed for output.
Use the following control cards to remove the first 11 bytes and still retain a VB file
//SYSIN DD *
OPTION COPY,VLSCMP
OMIT COND=(8,07,CH,EQ,C'ISRSUPC',OR,
7,06,CH,EQ,C'LINE-Ä',OR,
7,10,CH,EQ,C' ')
INREC IFTHEN=(WHEN=(1,2,BI,GE,16),BUILD=(1,4,16))
//*
OPTION COPY,VLSCMP
OMIT COND=(8,07,CH,EQ,C'ISRSUPC',OR,
7,06,CH,EQ,C'LINE-Ä',OR,
7,10,CH,EQ,C' ')
INREC IFTHEN=(WHEN=(1,2,BI,GE,16),BUILD=(1,4,16))
//*
If you want an FB file, then use the following control cards
//SYSIN DD *
OPTION COPY,VLSCMP
OMIT COND=(8,07,CH,EQ,C'ISRSUPC',OR,
7,06,CH,EQ,C'LINE-Ä',OR,
7,10,CH,EQ,C' ')
INREC OVERLAY=(134:X)
OUTFIL VTOF,BUILD=(16,122)
//*
OPTION COPY,VLSCMP
OMIT COND=(8,07,CH,EQ,C'ISRSUPC',OR,
7,06,CH,EQ,C'LINE-Ä',OR,
7,10,CH,EQ,C' ')
INREC OVERLAY=(134:X)
OUTFIL VTOF,BUILD=(16,122)
//*
Btw how did end up with a VB file from SUPERC? The batch invocation of SUPERC(PGM=ISRSUPC) creates an FBA dataset with an LRECL of 133.
