yes IV is the same and FI2 is different, will try g7x dancing bits
I'm sure that won't work.
If you want to check whether it is the same as another camera, you can search for the number sequence in the .bin file. The values are 32 bit ints, so in a hex editor like HxD that lets you search for bytes as hex, you would search for something like (using g7x as an example)
07 00 00 00 04 00 00 00 05 00 00 00 ...
In g7x, this appears at
fc0044ec and fc728320
I didn't find any obvious, direct references to these in the ROM code, though they must be referenced indirectly by the diskboot code.
The g5x dancingbits appears at similar, but not identical addresses: fc0044D8 and fc7c1d98
the g5x sequence does not appear in the sx720 dump.