anchor.diff:        </tr>
         <tr>
           <td>Members only</td>
  -        <td><%= @calculation.rules.members_only? %></td>
           <td>
             <% if @calculation.rules.members_only? %>
             Require current <%= RacingAssociation.current.short_name %> membership
  
positive.code:     <tbody>
        <tr>
          <td>Association sanctioned only</td>
          <td><%= @calculation.rules.association_sanctioned_only? %></td>
          <td>
            <% if @calculation.rules.association_sanctioned_only? %>
            Events must be sanctioned by <%= RacingAssociation.current.short_name %>
  
negative.code:       </tr>
        <tr>
          <td>Results per event</td>
          <td>
            <% if @calculation.rules.results_per_event && @calculation.rules.results_per_event > 0 %>
            If a team has fewer than the required results per event, they receive the missing result penalty
  