What are the different versions of the police that have been made? I have two. A very old marked "Police Model" all stainless and a fairly new G-10 scaled version. I notice the blade grinds are radically different. Anybody have the definitive chronology of the Police model? I rather like the more spear point old version. I understand the more current one is flat ground, Like the Military, that is what my newer one looks like. Is that the current blade? Also, although the G-10 Police version has liners on both sides, it seems to flex considerably more than my Military version...any ides why? Perhaps the pivot point is closer to the end?