Never mind about that. I'm just happy that the ecm really "enjoys" its e61 heads and that they're really good for "dosing". Haven't quite worked out the relevence of the "low screens" but I think it'll come to me in a dream, and I'm really happy the vibrators are reliable, particularly as they all have the same ones! Those of you that care to check my email address will note it is one of the VERY FEW in this thread that is legit and actually works. Readers should note, this thread is full of misinformation so if you really are seriously looking for semi commercial espresso machines, better look up a legit trader or two, find them in the for sale section of this site, AS MOST OF THE INFO PASSED ON IN THIS THREAD IS SUS. Choking even more than usual after reading this one! The Big G.