08-11

The tunnel on the 08-09 is same. Not sure the length. On 10-11 the tunnel on the 162 and 153 are both the same length.
 
Maybe the board design makes it look shorter. In 2010 they removed the excess of the back of the tunnel which may make it look long and skinny
 
The 08-10 tunnels are diff and diff lengths. 08-09 same length 153, 10-11 same length 153/162.
 


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