The 2030 is the most streamlined last Viberg uses. I would say it would be the closest thing to "formal" with respect to their lasts.
I checked the Viberg Blog and they mentioned that they are going to begin doing Goodyear welts. I thought that Goodyear welts were the standard. What does Viberg currently use? Has anybody ever gotten a Viberg boot resolved. I always thought that Viberg boots were famous for the guaranty that the company put on them.