So I tried them for the first time. I have two complaints. One of the three teeth tends to vibrate a bit, especially when using the slower high torque settings often needed when cutting such a large hole. I would like to put 4-5 teeth on the bit, especially big ones. Second, the metal frame is a bit light. If you hit a nail or even a decent knot, the racquet will deform! A few gentle taps will bring it all back, but a little more meat or a slightly stiffer alloy helps a lot - although that can…