Apart from sounding like two secret agents, anyone know the difference between the 006 and the 007. Just bought a used 006 as part of a deal with some other parts - just intrigued as to what changed with the presumably newer model (apart from a screw off cap it seems...).

Sean

okay, just found something that says 006 is piston and 007 is diaphragm

but.... which the better, in peeps' opinion of course