Hello Everyone - To begin, im a self-taught guitar player strumming for about 10 years. I have a question about speed - It seems when I play, 80% of the time im mostly using wrist/finger movement. Is this normal? Should I change to more forearm/elbow movement? Additionally, Has anyone had any positive experience with the Gripmaster strength tools? Will these devices increase strength in my fingering hand? Thanks For any Response in Advance!