Forgive me if this is a stupid question but I have no experience with laser grips. I have a 3" Md 36-1 that I am teaching my youngest daughter to shoot with the idea that it would someday be a home defense/CCW weapon for her. She is left handed and I want to know if a left-handed grip would interfere with the laser and is it more difficult for left-handers to activate?

The second question I have is there an after-market, drop-in, bobbed hammer that I can get for this gun?

Third and final question: What would a good self-defense load be for this gun? I can make my own or buy factory, would like to hear your thoughts. I carry a .357 or .44 spl and my wife carries a 9mm so I haven't given the .38 much thought. Thanks