I created a loft for a part and it is not following the same diameter as the piece below it. I went back and created some splines with the 3D sketch tool which helped keep the arcs from entering into the hole but now the arcs are not following the outer diameter. I was wondering if there is a more exact way to do this. Right now I am just manually shaping the splines over the top of the body.

For Pedal 7 I am working with Loft 2

Is there a way to get these diameters to be the exact same?