I wanted a pickup that would be easy to use and not force me to modify my mandolin in any way. The LR Baggs Radius-M works perfectly. Nice sound and easy to take on and off. It's fun moving the pick up around the top of my mando and finding the sweet spot. So far I'm just using the putty they supply and don't feel any need to go to the more permanent sticky tape. The sound through my amp is great and brings out the natural voice of my instrument.