I have decided to start a new project. I have a 6' x 1' board ready which is the maximum size I can accommodate - I live in a small London flat.   I am particularly taken with Rev. Heath's Piano Line (as shown on Carl Arendt's excellent site). However, before I fix the track in place I wonder if anyone has any thoughts or improvements for the plan? Is there scope for an additional siding, or will this make the plan too complex?   So far, I have the relevant track sections for the plan att