Here is a close up of how the blades follow the curvature of the stock skirts.
The thick portion at the back would have to be hidden under the Amuse skirt. The contour of the actual blade might follow the Amuse skirt contour, or it may not. You will know only after trying them on.
I see two disadvantages of using these with Amuse skirts:
1. Because of the thick portion, the blades will not be flush with Amuse skirts and have a gap.
2. You will be lowering already low skirts by the full thickness of the blade. You can see how thick it is in the back. It would have a similar gap to one in OP's picture.
Fujimura blade would probably work better, as it is flat and would sit flush.
