I have a mix of Schaller and Dunlop...I like the Schallers better, but have a few guitars that have custom built dunlop buttons...so I am forced to mix. THe only thing I dont like about the dunlops is the pin on the strap, always worried I will ding something with it the way it protrudes from the strap end...(although I am sure the schaller will ding something up just as easily...)