Please bear with me on this one......
     
     I have a 12 layer PWB(Backplane) with 8 ground planes(all 2 oz.). 
     Each connector on this assembly has several pins that connect to 
     all 8 ground planes.  Each connection is thermally relieved by 4 
     separate .010" traces(spoked).  Each trace is .035" in length.
     The connectors that are on the top layer have been successfully 
     flowsoldered, but I have several on the rear layer that require 
     handsoldering.  I am concerned for the handsoldered connections 
     and any repair required to the top connectors following 
     flowsolder.
     
     Does anyone have experience with this type of design and/or are 
     there any guidelines that might help me in reevaluating this 
     design.  
     
     Thanks in advance.
     
     Harlan
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