Recently picked up a Legacy Heavy Mikado 6-81186 from a nice forum member and am curious about it's origins. There are several threads running about various scale mikados and how Lionel utilizes the handsome K-Line tooling for several of them. One poster mentioned that "the less expensive Lionel heavy mikes were of a more recent design" or similar which got me curious. These were introduced in the 2014 signature catalog according to Lionel's archive site. Description says "newly tooled" boiler. The humped-back boiler almost seems over arched - is this profile accurate? I have had a K-Line Southern model and one of the earlier Legacy UP light mikados years before which were very visually different. Any info/experience on these would be appreciated.
Sam