OMG (goodness).  I love this.  If anyone is not getting list posts at this time, then something is wrong.  It's not that anyone is posting.
Allistair and Dennis.  This if just what we need.  A great discussion from different viewpoints.  This is what makes this forum great.  You both know and respect each other, and the discussion is great from 2 trusted sources.
Listen close all listees.  This should give you things to think about and circuit tracks to follow.  It ain't easy but this is what we have to deal with with thesr ol' vehicles.
Have Fun, Diane is calling me to dinner;
Dave B.the Boston onr