Changers are designed to pull on center as indicated by the white line. This eliminates
the changer levers twisting when pedal or knee levers are pushed. The control levers are
spaced to allow the pull rods to pass between them eliminating a place
where dust and dirt can build up, which can cause the changer not to operate correctly.
The levers do not touch each other. The rollers are anodized to prevent strings from
wearing grooves. They are machined with a string slot and a shoulder to catch the string
end if the string breaks.