To my taste, a 355mm lens on 11x14 feels just slightly wide, much like a 120 on a 4x5, while a 300mm feels a bit wider. The 300 will give you about 2" of movement, while the 355 will provide you with at least twice that. For what is is worth, I notice that I have, on several occasions felt limited by the IC of the 300, while I have never felt this with the 355. If I were to have to choose, I would choose the 355mm not only for increased movements but also that it feels closer to "normal", if you like that sort of thing.