I've been playing for 38 years, and had never given any consideration that what pick I used could change my tone. I wasn't searching when I found Gravity picks. I just happened to use the one that came with my JHS pedal. I thought 1.5mm would be too thick for me, as I had settled on .73 until then, but it was extremely comfortable and I could actually hear the difference through my amp. I had to look a their website and look into getting some more so I could make the switch to using them exclusively. As a big Van Halen fan, I was really excited to see they had the 'Stripes" picks and they were in the size and shape that I liked. I would recommend this pick be in anyone's guitar case.