As a side note, I wouldn't trust early lockup on any knife if there's graphite or sharpie on the tang. Lock stick is annoying but taking that stick away and having an early lockup is not a good idea.
And there have definitely been Emersons with early lockup whose locks could be defeated by hand pressure. Early lockup isn't as secure, no matter what brand.
If you owned Emersons you'd know what I mean....no big deal.