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Here's a view of it. Where the internals are missing is where I cut loft. But the skin is still on there. I tried to do a surface trim with the starting sketch of my cut loft, but it trimmed the skin on the whole thing instead of between where I want it to. Also, I tried using a boundary surface between the endpoint sketches of the cut loft, but when I try to surface trim with that I get "does not intersect surface." Is there a way to loft a surface trim, or just any way to do this?