I´ve owned a Strunal 5/5D for a year, and have now discovered a problem, I think. Acording to the Strunal website, the length of string from nut to bridge should be 1050 mm, but when my bridge is located in center of the "F" key mark, my stringlength is 1080! When I locate my bridge so the stringlength is 1050 mm, the bass sound better, but is far from the F-key marks. How should I locate the bridge? What is the correct placement of the bridge regarding to stringlength and F-key marks?