For Edge Pro, there's a
arm holder which the old Lo-
Pro edge do and you don't need to adjust the torque since you can set the tremolo in position by functioning the 2 Telfon washers and the arm holder. After prolonged playing, it may be lossen and you need to change it with the new ones.
For Edge Pro II, the tremolo arm is more simple (actually they'r cutting cost...). You need to adjust the torque at the right back of the edge. There's also a tremolo adjustment screw for adjusting the arm height.