FF4 SNES SRM Checksum

Looks like I'm not able to find any type of magic offset stored in the SRAM file. I've tried looping through both all 8-bit words and all 16-bit words as the initial value with no repeatable luck. I get a few matches in various places but nothing that is consistent from one slot to the next or one file to the next.

I just found Geiger's debugger. Is there a way to set a trigger (breakpoint) on when the user selects to save a file? Or do you absolutely have to know the address that you want to break at? Is there also a traceback feature? I saw the "Trace From" option, but again it seems to imply that you need to know starting and ending address points.