In what ways?
Well, the 80 is the one that 'looks like a Lamy 2000' but is a c/c filler. The only nib available I was Fine. Gold trim on mine, feels nice in the hand, and posts well, and writes a very very fine, but not stingy, line. At least the ones I got!
The 992 set (black, coffee, orange, green, blue and I think clear) are demonstrators. They have the size and form of the Sailor 1911 and also post well, but the nibs write a fatter line than the 80, and at the moment I can't see how they're marked, whether Fine or something else. Silver trim on these.