Ok, the normal rules for using, writing, copying etc. Lab Texts is quite clear.
But how specific is a device lab text? Do you need to make the exact same device, using the precise same shapes and materials? So when writing up the device, you need - in addition to TeFo level Range/Duration/Target, Penetration, Uses/day, other modifiers - to list the item's shape and material.
And am I the only one lacking these last options in Metacreator Covenants???

