[Fot] Rod question

[Tony Drews]

I'm trying to help one of the list members buy a connecting rod, and 
the rod manufacturer wants the small end and big end weights of the 
existing rods to match to.  Then it occurred to me - I have no idea 
how to go about doing that.  Anyone know the technique for weighing 
each end of the rod?  This is just for future reference for me, but 
may help out my cohort.

Thanks, Tony Drews