i own a japanese dslite
and i never had in my hands an american one
but im sure that my jap lite make a clicky sound
when switching by the 120 and 180 degrees fixed positions...
it do works really fine for me
Lite+flashme+original Mkds cart+M3 mini Sd
(patched the clean rom, copied to the Sd via windows -no m3 manager-
opening it by pressing Start, 4 seconds white screens, than you got it)