Just to show you what happens, when I connect the non-scandoubled MiST with Minimig AGA Core running:
Powering on the MiST
The Sync won’t get stable until I replug the MiST after it’s fully booted. But even then I have to replug it several times until sync is getting established.
Don’t mind the noise in the background. It’s just the coffee machine 🙂