I remember trying to make coffee with guests when I had my silvia. It was an utter PITA. I used to limit it to four and it would still take an inordinate amount of time. It would have been great to make the milk drinks first so that the espresso drinkers wouldnt shoot them down and then be standing there with no drinks whilst the others finished their cappuccini. Problem was that doing the espresso last was impossible. With all of the water passing through the group and all of the heating to steam temp, the group would get hotter and hotter throughout the set. My temp probe was on the top of the boiler, so it received no useful information about the extra heat being stored in the metal of the group. Id imagine that your PID would be the same - normal temp readout, but by the end of a series of shots they would start to taste burnt. Right?
After all of the Xmas food I have to confess that all that I could be bothered with this year is a giant french press of some very aromatic Kimel. I guess that I should at least have pulled the Vac Pot out!
The doser on the mazzer really helps to do multiple drinks; even though I only grind for one drink at a time, I can do it whilst Im extracting a shot or steaming some milk.