Vaporiser arived today. 
Have you chosen a tank yet, big boy?
Well seeing as yours works, I was going to order the same tank when/if Tilo rang, with a view to not introducing another difference in set up to blame the lag on, and hopefully get the same result as yours, which seems a vast improvement.
So what's the nozzle size story?
Seems there is still a slight lag at full chat when the tank is getting low, but I reckon it can probably be tuned out with some playing around as the Plus has some extra features

We need to have a decent play with it, not one where we're knackered and I'm trying to get away

As for nozzles... We went for 2.5mm but I'm tempted to have a play at going slightly smaller (2.3mm perhaps :-/) and have a play. The software moans that the nozzles are too big on Autocalibration but then on a run says that they're fully open (only once when we were out) which contradicts that

It stays rich though, which is the important thing

If you do get the tank from him, ask him to make sure they ship it valved too, although the PTFE and stuff will be in the spares box if it isn't
