Darn....I'm amazed that I got it to work!
This is how I started to install the reshaped plug with the flat bar.
Then I used my other precision tools to recess the plug a la the OEM install. You can see the one on the right is dunn, middle in progress and the left is what the flat bar does.
Then it is supposed to come out looking like this, with a slight recess just like the factory did the real ones!