I should have mentioned that most of the SME 3009 Improved models use plastic knife edges, which really ought to be replaced with ones made from brass or bronze. Some of the early samples of the Improved design used metal knife edges; SME were using up their stock of the these - the SME 3009 Imp (FH) arm I have, has a metal bearing.
Regards



Originally Posted by Andre



Your so good
Still better luck next time
.
