Should I Customize a Self-Defense Gun?

A few weeks ago, a student took a course from me using a carry gun with a custom trigger.  This particular trigger was shorter and lighter than the factory one.  This student was a very safe and accurate shooter but I recommended that he consider changing his gun back to the factory trigger.   If you are ever involved in a shooting, you may have to defend customizations to your gun in court and you definitely don't want to be accused of having a "hair trigger."

I solve this problem by carrying stock guns.  My self-defense guns (even those for home defense), are factory originals with no modifications.     

For some expert insight into this topic, read this excellent (and short) article by Massad Ayoob, for his recommendations on what not to do on your carry guns.