The reason that we offer both the conventional grind and the chisel grind, is really quite basic; to give you, the user, a choice. What type of grind you want is really up to you. We realize that the chisel grind is not for everyone, and a lot of your choice is based on what you are familiar with, or comfortable with.
My recommendation is to go with what you would feel comfortable with. As with any gear that you may use in a high stress situation, it will perform better and you will perform better, if you have confidence in that gear. You will always shoot better with your own gun. I have my personal opinions and preferences, but ultimately the choice must be yours.