I am not all that big on the whole cast vs. forged issue and have little interest in the history of the hi-power, but I have a question about production years and serial numbers. When did the Mark II change over to the Mark III? I seem to recall that some people go nuts over hi-powers from the late eighties or thereabouts because (I think) the fit and finish of the hi-powers at that time was the best or something like that. Can anyone enlighten me on this? I recall posts on this or other boards about it. The reason is that a friend of mine has a hi-power with a "PN" serial number (1989 production) and I am interested in getting it if it is one of these "special" pistols. Not normally a stickler for these things, the price tag is one that can't be resisted if it is one of the years that seem to matter to some people. I am very tempted to buy it to see if there IS any truth to what people say. Stephen? Anyone?