I would love to see a video on the shock treatment. Try this method first before you start changing trigger mechanisms. Get a regular squirt bottle. The type you spray at a cat works fine. Fill it with water. Adjust the nozzle to where just a spray comes out.
Now the fun part. Slowly squeeze the trigger till just a drop of water comes out of the nozzle. You don't want it to spray or trickle out. Just a drop of water. Once you are consistent with the one drop of water coming out, open the nozzle up a bit. Work on it till you are able to open the nozzle fully.
I have used this method in the past when training students trying to pass quals for departments. All use Glocks with a NY trigger and most show improvement. If it doesn't work for you at least you have a new tool to spray cats with.