So a little background information: I own and shoot a full sized Regent 1911 .45. It was my first handgun purchase and I only had the money for an entry level 1911 . While I love my gun I decided to buy a new gun. My purchase: LionHeart LH9N-MKII. 9mm 4.1" barrel. My situation: I've shot 9mm in the past. Its alright just a lot different than what I'm used to. How many rounds should I drill with? Distances? What's a decent ammo to chew through? Any additional things I should drill before I carry with something new? What about your past transition periods with new guns?