(Carry Weapon) Do you have a back-up to your carry gun?

Lucky Gunner did a video where he talked about having his primary carry gun (PX4 Carry I think) and a back-up/training gun (PX4 compact/subcompact basic).Two major points he had were* Having a dedicated training guns means less wear & tear on your carry gun* If you ever have to use your carry gun for defense it will likely be confiscatedDo any of you prescribe to the above ideas? Do you just rely on another gun already in your rotation? via /r/CCW http://bit.ly/2U0Puso