I've finished the warp nacelles this weekend, I'm pretty happy with how they turned out. I think I've captured almost all of the unique differences of the Miranda class nacelle, as compared to the Constitution refit. All of the major surfaces have been filleted, but I left a few sharp edges in there for contrast. I think they really add to the realism of the surfaces. And I've also learned a couple of workflow enhancements that has enabled me to figure out how to eliminate trims - albeit a very painful and tedious process. Anyways, these are about 97% trim-free. I rebuilt almost every surface to be a non-trimmed NURBS patch. Its been a grueling three days but well worth the effort. I stil have a few widgets to add, but I'll get to them later. So here's some rendered pics of the nacelle. and the front and rear.