Posted for earl_schroeder@juno.com:

Hi,
 
       My empty weight for the 235/320 combo with the wooden prop and other mods was 931 Lbs. The MT prop (hyd) only added 5.6 lbs to the total weight. I have a minimum interior (small cushions and only paint in other areas) which probably accounts for some of the extra noise level.  I used peel ply everywhere to keep the excess epoxy at minimum during construction.
               Having an 'overbuilt' main spar (as Martha says) is a GOOD thing!   Earl