Sorry I just noticed this, but I would not have fitted the restrictor plug. I would have tapped the case to take a screw in one and only fitted it if needed. Even then I would custom size the hole.
Yes That is I still on the table.. And may happen in the future. I'll base line the trans shifts with the cup. If I need to tweak it later I can still tap the port and fit custom orafice sizes for fine tuning while the trans in the the car.
