Hi Paul,
I've been in touch with Adam. Yes there is overlap, I found it in the meantime. I misread an earlier email from Adam. It will add handling that overlap to my code. I agree that for proper analysis I need to wait until Adam does it properly, this is just to have a quick look at the data.
Curious thing about long names, as this feature is documented in @Atlasize help. I am wondering now if the overlap, which generates spurious keys from adding non-zero CHARM voxels to non-zero SARM voxels, was the reason for the long names failing. Once I add overlap handling, I'll know!