Without any of us being able to witness your handling of the firearm, we're trying to explain what we've found to be the issues with other we've helped in person. You asked for the Internets to help, but honestly you asked us to remove the vast majority of the possible fixes from the table. Most of us aren't trying to get snarky with you, so understand, without photos, videos, or one of us witnessing your shooting the firearm, we will believe that the issue (most likely) is software. It isn't personal, nor are we trying to make it personal... We're explaining what we've experienced.
I guess that stipulation was thrown out the window pretty fast. I was looking for hardware solutions, not software. I should have known better than to ask the Internets.
Here's a good hardware solution. Trade it or sell it. A grip safety has no business on a modern striker fired handgun used for defensive purposes.
Glocks don't have them.
Sigs don't have them.
HKs don't have them.
M&Ps don't have them.
Walthers don't have them.
Kahrs don't have them.
Rugers don't have them.
FNs don't have them.
Etc. Etc. Etc.
Pick a brand and model in common use amongst professionals and leave the rest alone.
M&P or Glock would be a solution.. One of the things you find out shooting a pistol VS just holding it.
Glock certified armorer- M&P Certified armorer
NRA Basic pistol instructor[FONT=&] /[/FONT][FONT=&] RSO[/FONT]
Could be your technique........