This forum is so full of knowledge/first-hand experience that it is invaluable.
When I receive a new print cartr. my plan is to print out whole threads of excellent info/discussion and put them in a folder.
Threads like 'bore verses stroke', the one about oils, and "triple trees' for just a start. [cant remember the name of the one about oils]
Another one would be about the black art of expansion chambers, is there a thread about that? Over the years I've read different explanations of why they work theory but the chambers look the same anyhow.
cheers pancho