I have a simple ovel with a branch to the outside. It runs around my christmas tree. Looks pretty sweet. Any ways i have a string of cars on the oval with two locomotives on it. On the branch i have a 4-8-4 steamer, but now its a2-8-4 thanks to some 4-6 year-old kids i didn’t even know. ANY WAYS when i swithed the locomotives around i’d make the two desiels go the steamer would move too. I experimented with the switch a bit but that wasn’t it. So i’m wondering, do i need insulated joiners on the on the no frog rails on each side. The mainline rails.
Thanks PJK