[PCB_FORUM] Z Axis Delay Question

Hello All,
 
I was wondering if anyone could help me solve this problem.
 
I am using the Z Axis Delay to do the length matching for a board.  One end is 
connected to a BGA by Via on Pad L1-L7.  The other end is connected to a part 
that has a through hole connecting top and bottom pad of a footprint.  The 
layer count is 28 which is making the distance from L7 to top and bottom to be 
different.  I was wondering if there was a way to specify which length to use.  
Either L7-L1 or L7-L28.  (Currently it will only give me the distance for the 
side the component is placed on.
 
If anyone have a solution for this I would appreciate it if you could advise me 
how to solve this problem.
 
Thank you all in advance.
Seiji

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