Exactly same pattern applies for every series not just SBS
series. Be it EA - EZ, SH - SHB, PA - PB, CB, GA - GV, TIB, FA -
FZ, SBA - SBZ, SCA - SCZ, SDA - SDZ, SFA - SFZ etc etc the pattern
of emergence is exactly the same. They just look different because
the starting check digit is different.
I've long cracked the so called "pattern" :p