We must be a special kind of crazy to do this.
Well, I finished installing the TFX Pro sight set on my Witness's slide and just have final zeroing at the range left to do. I think this will work.
Here are a couple of "shots" (pun intended) of the 9x23 Winchester Witness Semi-Compact with the TFX Pro sights installed.
First a sort of "shooter's eye view" and yeah, I probably should have used something other than the magazine to prop up the pistol because the top round is right behind the rear sight and it is distracting.
And a view of the left-hand side of the pistol
The TFX sights work as described by Tru Glo. Nicely visible green front and rear at night and a quickly-acquired (even with my old eyes) orange front and green rear.
Note: anyone thinking of adding a CZ-75 front sight to a standard Witness should look closely at the cross-pin under the front sight. On my pistol it is larger than necessary (1/8" rather than 1/16") and it is located about 1/16" too low ( the reason I had to use a larger pin) and the lower edge of the pin binds on the barrel stopping it from fully going into battery. I had to machine off the lower half of the pin in the centre in order to clear the barrel. I chose to keep the cross-pin as I think it is a good idea, but since the Tanfoglio design does not use a bushing around the muzzle-end of the barrel you COULD do away with the crosspin if you secured the sight in the dovetail with Loctite or something similar. If you don't secure it, the front sight WILL come loose under recoil and go flying downrange.