To revisit this thread a bit:
There are many small variations in terms of cosmetics (ie. G-10 color or dimpling, Ti slab flaming and or dimpling, blade finishes, etc.) for all Generations (currently with the exception of the Gen.4 models). Most of these pieces are affectionately known as "orphans" or "Frankensteins" within or even crossing the Generational characteristics, but are truly no less Striders than their more straight-laced sisters. These are of unknown numbers produced, and are not numbered.
I believe that the numbered Generational "standard" sisters in Americanized Tanto and spear/drop-point format were made in 200-piece batches per Generation (someone please correct me on this if I'm wrong).
In addition to the Bull Pivot use in the Gen.4 (Current) iteration, differences in bushing type sets off the Gen.1 numbered variants from their descendents.
Most Gen.1 to 3 SnGs require between 500 to 700 cycles to "break-in" and become smooth, the Bull Pivot improved this considerably.
Your best bet of snagging previous-Generation SnGs is through the secondary market, and just like the amount of information that the USN provides on Striders, it's also the Mecca of such secondary markets here in the US.

Allen
aka DumboRAT
There are many small variations in terms of cosmetics (ie. G-10 color or dimpling, Ti slab flaming and or dimpling, blade finishes, etc.) for all Generations (currently with the exception of the Gen.4 models). Most of these pieces are affectionately known as "orphans" or "Frankensteins" within or even crossing the Generational characteristics, but are truly no less Striders than their more straight-laced sisters. These are of unknown numbers produced, and are not numbered.
I believe that the numbered Generational "standard" sisters in Americanized Tanto and spear/drop-point format were made in 200-piece batches per Generation (someone please correct me on this if I'm wrong).
In addition to the Bull Pivot use in the Gen.4 (Current) iteration, differences in bushing type sets off the Gen.1 numbered variants from their descendents.
Most Gen.1 to 3 SnGs require between 500 to 700 cycles to "break-in" and become smooth, the Bull Pivot improved this considerably.
Your best bet of snagging previous-Generation SnGs is through the secondary market, and just like the amount of information that the USN provides on Striders, it's also the Mecca of such secondary markets here in the US.

Allen
aka DumboRAT