So after spending the majority of the day with my 19, I had to make a few more changes to the switch.
If you press the button straight in and make contact with the battery, it doesnt actually complete the circuit. You have to press the button on the edges so that the button touches the sides of the lock ring and completes the circuit. This is pretty annoying as you will end up with a high percentage of misfires. This happens with or with out the magnet in place, but happens more often with the magnet since it adds height to the negative post. If the switch was designed correctly, when pressed the post would make contact with the battery and stainless ledge inside the switch without ever needing to scrape the sides of the switch interior wall.
One way to correct this issue is to screw the lock ring to adjust the throw of the switch till the negative post rises and makes contact with the battery and the lock ring. The flaw in this fix is that the majority of the time when pressing the button, you also have a chance of spinning the lock ring. Not a very solid fix.
What I did to correct this, I used a copper spring that I shaped to make contact with the button and the interior wall of the lock ring and switch housing. Since the copper spring is acting as a midpoint between two stainless surfaces there is no drop in conductivity. Perhaps a small gain. I havent had a misfire again. Plus replacing the original spring gives a softer firing button. I prefer this over the stiff matress spring I replaced. This is my new beater mod. Lets hope the #20 is 50 times better out of the box.
