Ok so the 1st PM66SE KI i bought was not quite firing on all cylinders, however not to be deterred i've bought another one, this time it's absolutely mint with not a mark on it anywhere, under the bonnet it's as clean as a whistle too and a real credit to it's former owner. i bought the 1st one on a whim (i liked all that shiny copper) and bought this one as a reference point so that i can gauge the improvements i'll be carrying out to the 1st one. So far though i'm very impressed i can see it being hard to improve without spending significant money.