It is not my intent to bad mouth any MTH product however after using the MTH Realtrax switches I have phased all of them out of my train room. Like a few other companies switches they are to much trouble for constant running, especially with my different Tin Plate train. I invested in the newer FastTrack remote control switches and have had no problems with them for constant running of all my different trains. I do have a small loop of MTH track under the living room Christmas tree, with no Switches. Unfortunately IMO the only way to completely solve your problem, so your children can totally enjoy your train layout is to re-engineer your layout. Costly especially at Christmas time.