@sinclair posted:I have the K-Line Big Boy and it can take O27 track. It's a great runner and my 7 year old loves running it with the Cab-1 while I run my Vision Line Big Boy with the Cab-2. The only issue is it's rather quiet sound wise.
The K-Line Big Boy version is much smaller than even the Lionmaster "semi scale" Big Boy when we did a comparison of it against the Lionel version many years ago. I think if you have the Kline version it would be pretty noticeable that it's not close to scale when using it with scale cars or parked near other scale locomotives, but perfect for traditional trains and really tight curves! If all you have is traditional size equipment, this is a good choice. The Lionmaster version does feel "massive" with traditional equipment (as it should be) and visually acceptable with scale equipment and other scale locomotives as long as you don't park it next to the scale Challenger, Big Boy, or Allegheny. All the above is my subjective opinion of course...
