Customizing Guitars

Yesterday my husband customized his acoustic guitar by placing a transducer, guitar pickup so he can use his guitar with an amplifier. While he was customizing it, I was hoping that he wont make mistakes because it he was making a hole with his guitar using a small kind of saw. After an hour, I heard him play his guitar. Glad to know that he did a great job in customizing it. His next assignment is to place an emg pickups on his electric guitars.