Sorry, that's not going to happen. I'm shooting from a standing position, no fixed rest, and each lane I'm assigned to seems to have a little different overhead lighting which can alter my fiber optic sight picture a little bit. The only way to truly see how each handgun compares to each other is to shoot from a rest, in the same lane with the same ammo, and preferably during the same day. My old eyes can't focus sharply for a prolonged shooting time to accomplish this.
IMO, my four 75s perform very similar to one another, so their built in factory accuracy (with the same aftermarket mods) is very good. My two Shadow 2s are a touch better, and the S2 Orange is the best in my opinion. Is the price difference really worth it? I guess that depends how proficient a shooter you are, but not so much for me. I usually see a ~ 1/2" tighter grouping on average with the S2s. Heck, some days you just shoot better than other days.