I have an 060 Left Hand Remote Command Control switch. It is about three years old, and on a "high traffic" section, in a curve (the switch leads straight off to a siding). My locomotives have started to force the points to a neutral/ middle position as a locomotive passes through the switch. There is a noticable "lift" of the locomotive as it reaches the points, then it forces the points to center. So- I think it's a mechanical issue.
I examined the internals, and the (what I would call) centering spring on the pie-shaped piece seems to be OK- at least seems to have similar resistance to compression to that of a new switch.
What could be the cause??