Extra Geometry From Loft

Hey Solidworks Community,

I'm hoping you can help me on a loft issue I'm having. I have designed a flying wing that is going to be the "plug" to create mold halves for composite manufacturing.

I have two airfoils that I am lofting between with 2 guide curves. The issue is that right at the trailing edge there are weird geometries created such that creating a parting line and surface is difficult. I'm assuming it has to do with dimensioning and locating the airfoils(curves/spline) and guide curves.

Any help would be appreciated!

SolidworksParts And Features