No question is a daft question Gary.hi mate
sorry for the daft question but is that a different test plse as see some on the D3 forum do an injector leak off test where they have the unit where it shows the quantity of fuel from each injector
Many thks and once again apologises for the daft question
From memory, spill measurement on these injectors isn't a reliable way to test them, as they're designed to spill an amount of fuel anyway.
The best test is to use the IID to check the compensation values. IIRC the higher the compensation figure, the worse the injector is.