I play acoustic guitars - a combination of blues, ragtime and some ambient style music and I have found that I prefer a heavy pick to get the touch, volume and the response I enjoy. I use the Dunlop black nylon pick that is 1 mm in thickness. I still have the first one of these picks given to me by my guitar teacher in 1978! This pick has made quite a change in my playing. It has forced me to address my guitar with some confidence. If you are timid with your guitar, this is not the pick...it will show you up right away. Highly recommended!