I agree with Trainman on both issues.
I had a Christmas layout upon which I had used whit batting. I ended up with locos that wouldn't run because the fibers had built up around the axles. I spent hours with a pair of tweezers, pulling out fibers.
A flat surface is definitely needed to prevent derailing. It you don't want plywood, maybe something like a few thick sheets of foam board would work.
I had a Christmas layout upon which I had used whit batting. I ended up with locos that wouldn't run because the fibers had built up around the axles. I spent hours with a pair of tweezers, pulling out fibers.
A flat surface is definitely needed to prevent derailing. It you don't want plywood, maybe something like a few thick sheets of foam board would work.