Hi all. I'm looking to purchase a Becker Necker to use as a dedicated neck knife.. My research has shown three different versions of this knife. The first and least expensive is the coated US made 1095 tool steel one, the second is made from San Mai and coated black also, the third is uncoated and also of San Mai construction.Both of these are made in Japan.The last version is the most attractive showing the wavy San Mai line between the carbon and stainless steel. It is also the most expensive version. I would be interested on any comments pro and con regarding these three knives which will be used in the field. I am interested in durability of course but most important is edge retention and cutting ability. It should be noted that the uncoated San Mai version is over double the price of the 1095 version.Thanks.