I have several Lionel operating cars, milk ,Ike and Mike lumber, and merchandise unloading, and have a question about the shoes. I have traditional 0-27 gauge track and my milk car seems to have issues with it's shoes going across some of my switches. They seem to hang up even though the springs seem to allow them to elevate easily. Also my merchandise operating car seems to slow my train down when going across a section of insulated track. All this causes me to hesitate to use them which is quite frustrating. Is this less problematic with FasTrack or other brands of track.