I'm modelling the Western Maryland, which like many roads in the 1950s used EMD F units. F7A's specifically. A few manufacturers have or do make F7s but I'm interested in the opinions of some who have them on here. What runs well, looks the best and so on. I will need B units also, and I think this may limit my choices quite a bit. I'd ultimately like to put a A-B-B-A set together. They need not all be powered, and the road name availability is unimportant as I can paint them myself (black...real tough!). I like my Alcos and BL2s, but need to represent some F7s!