Troubleshooting Trimmer Power Settings: How to Find Optimal Power

Question
it's me again i messed with the power screw on the side of my trimmer and i don't know if its really set to the highest power but my question was how will be able to know when it is

Answer
Hey Mario start with the lowest when the blade is barely moving or you can barely feel the motor moving then keep turning it up by playing with the screw until you hear a loud sound and with the styliners trust me you will hear it then turn slightly until the sound goes away