I just bought a PT-145 and put 100 rounds through it, LOVE this gun! I will be using this for my CCW. My wife is new to the shooting world and shot her first gun last weekend. She shot a .22, .38, 9mm and my .45. She shot the best from the .357 with .38 rounds. I am wondering if we should elect the 605 model and let her get comfortable with the .38 rounds, then when she is ready, move up to the big boy rounds. This would also be her CCW. Any thoughts?