Anti-Servo Tab dimensions

[D.Howard@kid0110.wins.icl.co.uk]

         I'm a little confused over the measurements for removing the trim  
         tab from the tailplane.                                            
                                                                            
         Fig 25 on page 4-16 (issue 3) shows a dimension of 155mm from the  
         trailing edge along the tab tip. However on the bottom surface the 
         distance from the same point on the trailing edge to the middle of 
         the slot line is more like 162mm on my tailplane. This means when 
         you cut the tab off it's leading face is effectively twisted as 
         the root measurements are identical top and bottom.
         
         OK, so what am I doing wrong ?
         
         - Dave Howard
         #309