So I’m a bit confused about steps 6 and 7 in Section 1. You’re saying that in the Nintendo 3DS folder I should have:
Nintendo3DS->NewNumBlob and OldNumBlob but within OldNumBlob there should be TWO different OldSubNumBlob folders. There’s only one in mine so it looks like:
Nintendo3DS->
NewNumBlob->NewSubNumBlob->extdata
OldNumBlob->OldSubNumBlob->backup,dbs,extdata and title

I decided to copy only the four folders in OldSubNumBlob into my NewSubNumBlob directory (otherwise there would be no bitching about overwriting or merging because the SubBlob folders have different names) but when I put the new card back into my old 3DS to verify I can still access my games they don’t show up anymore. I don’t want to attempt a system transfer because I can’t tell that anything has properly been transferred.