A family friend was over the other day admiring my low cost Sigma and told me I should look into getting night sights being that the gun is for home defense. I honestly never use my sights, day or night and all my shots are on target. He suggested rather than pay a premium for pro night sights that you can just get some luminesent paint and use a toothpick to drop the paint in on the factory sights. Anyone out there doing this? I imagine it doesnt last very long, but a small bottle of the paint is really cheap and re-applying it during cleanings seems easy enough to do. Thoughts?.......