I like having both wheel guns and semi-autos, and I think you are wise to consider diversifying.
I also think it is wise of you to consider "What would I do?" in a situation such as the Arizona tragedy. Be prepared, but hope you never have to turn preparation into action.
I think I need to sign up for one of these tactical classes just for the training and confidence factor. IF, forbid I ever come in contact with some crazed killer, that would at least help with the panic, adrenalin (sp?) and total chaos, that I could at least defend myself and my kids and perhaps others. That would be more than I would get shooting by myself at the range and well worth the money and time to me.
Most states require much more than mine does to get the permit, which wasn’t much, which is good for the right to carry but maybe not so much for the confidence factor in a crisis.
Thank you for your information.