Ok, so in September I'm going to take a Combat Pistol course. I have both 9mm and .40S&W pistols that I can take to this course. I was thinking of taking the .40 with this logic: If I can handle it and learn with it considering it has more recoil than the 9mm, I can apply what I learn to the 9mm. If I take the 9mm, I'm afraid that I won't be able to apply what I learned to a pistol of more power. Does that make sense? Or am I just being a tard? Background: Both are Glocks (17 and 22). I can group well with both although my follow-up shots are slower with the 22. I feel comfortable with either.