Proceedure for tuning two pianos together.

[Vinny_Samarco@ima.connections.com]

Hi List,
          I am an oral tuner, and will be tuning two Yamaha consoles
          together.  If I make sure the A's are in exact tune with my
          fork and with each other, and then proceed with my
          temperament, should that be accurate enough; or are there
          other methods?
          Thanks very much.
          Vinny Samarco