You can still press the nose cone into shape. It is very forgiving. Just take it between your fingers, use your thumb to press from the inside and the knuckles of your other fingers to apply the anti-pressure on the outside. If you go around the perimeter you'll be able to smoot things out. I'mnot too picky with my builds, BTW. If I see that something is off I'll cut it apart and push everything together to make it "
look" right. Often the LOOK is what counts in a presentation; remember the Millennium Falcon mockup created for ANH: they only built the right side of the ship and skipped the rest, including the radar dish. The head of my Colonial One is pretty wonky and far from straight. I noticed that too late and had to deal with it. My solution: I photographed her from certain angles which do not show the issue. That is another way to hide a mistake.