I've experimented with 2nd Dynasty’s ships and minis at both 15mm and 28mm scales, and I’ve seen others successfully use a popular 32mm scale as well. One of the great things about 2nd Dynasty’s products is that you can scale them, within reason, to fit your needs. However, I’ve found that working with 15mm can be more challenging, especially when it comes to painting and maneuvering around tight deck plans.
The flexibility in their designs is fantastic, and they emphasize printability on commonly available printers. But scaling still requires extra effort and fine-tuning to get it just right.
In my experience, while 15mm is certainly doable and has its pros and cons, I find 28mm much easier to work with. It’s more practical for keeping everything visible to everyone at the table, and it allows for smoother movement of minis without needing long tweezers to manipulate them. It's not that I didn't give 15mm a fair shot—it works well on paper. But once you factor in walls, decks, and depth, 15mm starts to feel too cramped. And it’s the depth that really makes these models shine.
For reference, the attached image shows a Beowulf at both 15mm and 28mm scales, along with a 1:270 mini for scale, all placed on a one-inch grid with a Sharpie for context. (Bananas weren’t used because they can vary a lot in size!)