Pat,
The point rails are attached to the throw bar, which moves from side to side to 'throw' the switch. You should measure the amount of throw needed (inches) to push the point rails from one side to the other.
The Tenmille "throws" about 1/4" I believe, so it looks as if your AC needs a longer throw than that (measure it.) You have two options:
1. increase the throw using a lever, as Jonathan suggests, or
2. move one of the point blade rails on the throw bar so that the throw is only 1/4".
Option 1 is easy in theory, but requires that you solidly mount the Tenmille next to the switch throw bar, and install a bar with an off-center pivot. Connect the Tenmille to the shorter of the two arms and the throw bar to the longer one. (Oh well, a pic is worth a thousand words, so lets try one.) The ratio of A : B is the amount that the throw will be increased at the throw bar.
Option 2 requires that you move a point rail nearer the corresponding stock (continuous) rail. Your objective is that the points move from one extreme to the other exactly the same distance as the Tenmille and no more.
