Hi Duncan - Season's Greetings, and thanks for your work on
the rules thus far.
Just a comment about removing the Rat Race walls - what
happens if a Rat goes out of control along the length of the course? All
the other Formulae tracks have walls (I think.....?) so a 'wild' mouse can't
commit suicide by running off the edge of the table top. For the safety of
spectators and rats, I recommend that there is some kind of barrier around the
perimeter of the Rat Race course.