Reading everyone's comments I can see both sides. There are those that won't drill the hole or modify their machine and the other side that will modify their machine to their personal tastes. I my opinion I am one to play the machine the way it is built pretty much. People change the menu settings to make the game easier or hard, that's okay to make the machine more enjoyable if you choose that path. Some people change the pitch different to what the recommended setting is supposed to be set at. I don't like when people change the outpost pin settings to make it harder for the ball to drain to the outside. Again it is personal preference. From a purest point of view I think it is another challenge to play the machine the way it is built.
Just like in video games when people play modify their joysticks and have turbo buttons, it gives them an advantage against people who don't modify their joysticks. When you see pinball high scores listed, whose to say some people didn't change the menu settings to make the game easier to rack up more points. When I was much younger my friends and I use to keep a high score sheet of the different home video games we use to compete against and have an asterisk next to the high score sheet if we played the game on easy, normal or hard. I play pinball to have fun with my family. I am not driven by high scores, but wish they would add a feature that everyone in the family can have their own hi-scores saved in the machine besides the overall machine hi-scores.
I did like the person that modded a pinball machine for someone with one arm, great move to make someone enjoy pinball.
Not against modding a machine, just not to the point where I feel like it is giving me a slight split second advantage compared to a person who did not move the button, but who am to say. Just my 2 cents. That's just me. Do whatever makes you happy.