Hi pals, just created an account here. Looks like a good place to pick some brains! I have a question about the roster I’m developing for my future layout. I’m modeling a freelanced road set in the early 1980s that operates entirely in Texas between D/FW and the Gulf Coast. About 90% of my roster will be 4-axle units, the bulk being GP40s/40-2s, as TOFC and short, speedy freights make up a significant amount of traffic. Because virtually all of the route is relatively flat, all of these units were delivered without dynamic brakes. The question I have is about some SD40-2s I would like to include. I’m wanting to represent about a dozen of these units (the only 6-axle power on the road) as if they were bought as pool power for some Burlington Northern unit coal trains originating in the Powder River Basin and terminating on a couple of power plants along my railroad. My question is, if these SD40-2s were built as pool power, would everything on them be virtually identical to BN’s units other than the paint? For example: units ordered 1975 and after on my roster were all delivered with roof mounted air conditioners. Would my SD40-2s likely have these too or would it be more likely that they were carbon copies of BN’s even down to the smallest detail? All my other units weren’t delivered with any type of snowplow either. Would the pool power SDs have these though? Sorry, that was a little long winded haha. Hopefully my questions make sense, and I’m looking forward to learning something!