The Emerson's I've noticed dated before 2007 and some 2007 have duel titanium liners, both on the thinner side. 2010 through 2012 have a thicker liner on the lock side and then a thinner stainless liner on the non locking size. The liner on the locking size is thicker on models within this year then on the older ones with the duel ti liners. The newest ones seem to have identical thickness in liners with titanium locking side and stainless non locking size, however not as think as the ones made in the years stated.
If you want the thickest regular production liner lock and don't care that the opposite side is thinner, search for an Emerson with the year 2010-2011.
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