gunrunnerjohn posted:I haven't noticed any lack of "heft" with the VL-BB. It may weigh less than the JLC version, but it's hard to believe it's a big difference.
It might not be a huge difference for tractive effort for a Big Boy or Allegheny. But for a "smaller" engine such as a Northern or smaller it could be big factor. Just a pound or 2 makes a difference in pulling power. 5-10+ Car difference depending on what you are pulling.