Perhaps it is the extreme and repeated use of S2 and TS and TS2 that is confusing me... either that or there is some misinformation being posted.
The Tac Sport Orange, like the Tac Sport, is discontinued now. Plenty were made, plenty are out to be found, bought and loved.
The Tac Sport 2 comes with the blue aluminum grips. It is in production. It is not a $1,000 pistol. It has a $1,598 MSRP and it's rear sight is fixed.
I've been impressed with the Shadow 2 pistols but they are different guns than the Tac Sport, the TSO and the TS2. And yes, the original Tac Sport, the TSO and the TS2 all share magazines, although the TSO came with aluminum base pads. The Shadow 2 uses different magazines.
I'll admit that I did not realize a Shadow 2 SAO existed -- I guess I'm not sure the draw to that, although if your hands prefer the slimmer Shadow 2 to the Tac Sport/TSO/TS2, maybe that's it.
The upper end Tanfoglio 9mm guns can play in this arena, they are more known and proven in Europe for competition. I have a ~15 year old Witness Elite Match 9mm and this pistol absolutely hangs with my top-end 9mm guns which include the 952, 3566 Limited, PPC-9, and Sig P210-A.
The more high-end, elite, rare, expensive 9mm guns? BAC has those!
I said it earlier in the discussion. The faster and easier path to high-end semiautomatic pistol gilt-edged accuracy comes down the path of .45 Auto.