Pull request type

• Code changes (bugfix, features)
• Code maintenance (refactoring, formatting, tests)
• ReadMe, Docs and GitHub updates
• Other (please describe):

Checklist

• Tests for the changes have been added (if needed)
• Docs have been reviewed and added / updated
• Lint (black rocketpy/ tests/) has passed locally
• All tests (pytest --runslow) have passed locally

Current behavior

When defining a NoseCone a message is printed saying that the nosecone length has changed due to bluffness, even when it has no bluffness

New behavior

Now the print is only done when an effective change has been made

Breaking change

• Yes
• No