I agree with all that has been said on this so I won't repeat their points.
I will add that I bet a huge percentage of the folks that went through the CCDW class are not avid shooters and that alone can be a problem.

I have spend alot of money shooting my pistols, rifles and shotguns through the years and do a pretty good job with all of them. I guess all I'm saying is that getting used to your weapon of choice is very important.

Oh one more thing if your not in the NRA sign up! They fight for your rights all the time and your subscription helps fund them.