Natural Aptitude/Gunnery means you are more likely to hit and do damage to an enemy target
Natural Aptitude/Piloting means you are less likely to lawn dart
Failing Gunnery means you have to come back around the airspace and try again, or about 1-2 minutes.
Failing Piloting means you have to come around the cycle of reincarnation and try again, or about 20 years.