Great stuff Reubster [smiley=thumbsup.gif],
The method youve used to differentiate the performance between the old burr-plates and the new is very similar to what I did, quite an astounding difference it is too :o.
I reckon that once youve got a commercial grinder performing at its best, youre not really going to want to go back to anything else, the grind is just so darn good and the effect in the cup is huge. I bet, like me, youre finding it hard to wipe the smile off your face Reubster :) ;). All the best mate,