Hi, I've reseived a bachmann spectrum 4-4-0. Personally, its an amazing looking engine and I like how detailed it is! The I was gonna wait till Thursday but I had to see how well it would fit the B&O old time round house caboose I got about a year ago that I used to think wasn't gonna be used much, but it found the perfect partner! Another neat thing was that it came with spare parts! I was wondering how do I replace the dome? I don't know how to take it off so I can swap it with the spare. Other than that, I'm just going to swap the piot trucks wednessday and test it on the club helix Thursday.