I'm trying to duplicate and scale a rectangle I created with arc corners to create a series of thinner lines inside. The problem is when I start scaling the lines the arcs don't equally line up with the larger outer arc. I held shift+alt down to scale uniformly toward the center, didn't work. I tried using the "Scale Stroke & Effects" option in the transform dialog but that didn't help. Any idea how to do this without having to create this multiple times?