I got a 1213s and crossflash it to 1653s (CS09)
CS09 reads/burns disc pretty good. But few months later, I found that the drive gives bad KProbe scan and strange noise.
The 1st picture is the same disc burned by CS09 at 8x, scan with TS0D
The 2nd picture is a disc scanned by CSTJ (Incomplete scan)
**CS09, BS0S also gives bad scan
My comment is 1213s may not be identical to 16xxs