Adjustment screws for the top and bottom stacks are a terrific value-added modification because they allow the technician or the player to make a timing adjustment to the stack keys with a turn of a screwdriver. An adjustment screw can also be added to the Low B to Low C# contact to allow for quick timing adjustments without sanding or bending. At the discretion of the Sax ProShop staff, it is possible to replace the traditional F# adjustment arm with an arm that has individual adjustment screws for the G# and bis Bb.
Below are examples of each type of adjustment screw. Click through for photos: