Sir, perhaps you can elaborate on why a Sterlingworth equates to a "billboard" while a graded gun would be a "canvas" as a starting point for a completely custom gun?
The differences between them are superficial, aside from the forend latch. As this gun sits right now, there is no way to tell whether it was a Sterlingworth or an F grade when it started life. I realise that you may not like this particular piece, and that's cool but to imply that a Sterlingworth is somehow materially inferior to a graded gun is simply incorrect as far as the facts are concerned.