In “Numbers and Variables” in the Appendix, replace “If a game variable has no defined starting value for new Shuttles, or for existing Shuttles upon the variable’s creation, then that starting value is zero (for numerical variables) or blank (for a text string or list).” with:-

If a game variable has no defined starting value, then that starting value is the nearest legal value to zero that it may take (for numerical variables, defaulting to positive if tied), blank (for a text string or list that may be blank), the alphabetically earliest legal text string it may take (for a text string which may not be blank, with the digits 0 through 9 considered to precede “A”), or the list which is alphabetically earliest from the set of lists with the fewest elements (for lists which may not be blank, and considering each list to be a single unpunctuated text string, with the digits 0 through 9 considered to precede “A”).