I have not used the Valmet yet. I've bid on a couple but haven't been successful. They are or were recently available new and have quite a selection of barrel combinations. I saw one that was being sold with seven sets of barrels. I believe that Sav rebranded some Valmets as the 2400 but don't quote me on that. Interestingly Valmets haver come with single triggers with a selector on the trigger and double triggers. They are good combo gun with the option of double rifle barrels or double shotgun barrels.
The American Arms combo above has the barrels adjustable for point of impact. For some reason I think Marrochi is making the Valmets now, something I might have read.
If I am not mistaken the Valmets have the rifle barrel adjustable for POI. They're now being produced and sold by a Swedish company, maybe Tikka? The Remington 3200 and the Kreighoffs have the same locking system as the Valmets and Tikkas.
