It having received a system transfer makes it a lot harder to brute force.It's a New 3DS and it's received a system transfer from BOTH. I've also used Figgy's SeedHelper and I've been in the brute-forcing step forever.
The New 3DS has never been hacked before.
It's never been sent to Nintendo.
There's only one id0 in sdmc://Nintendo
Link to my movable_part1.sed: ufile.io/3egzb
Screenshots below that my help understand the situation.
I bet zoogie's messaged you already or will reply here when they can.