I've been doing a lot of reading/research, and it's basically going to come down to a Glock or Springfield. I've joined this community, but not a Springfield one if that tells you anything. I've gone and held both brands of weapons (but not fired as of yet). I plan to fire my main 2 or 3 choices before buying, and I'm not here asking the community to "pick my gun for me". I'm trying to tap into the wealth of knowledge here, and get some answers and explanations so I can make an informed first purchase. Info: This will be a CCW, but mostly evenings and weekends as I work on a military post (can't carry or transport except to and from the range). Between the price of the weapon, my CCL ($200 in OK), and some training at the range, this is going to be a large investment, and will be my only handgun for quite some time. Will be used as a home defense weapon as well, until I can purchase something more suitable (see above). I've narrowed it down to the 19/26 or the 23/27 on the Glock side. That being said, here are my main questions: 1) Since it's a first pistol, am I "better off" with 9mm or .40? 2) Is compact or subcompact a better way to go? I'm 5'9", 190-200lbs. I also have smallish hands/short fingers for a guy. 3) New or used/have the issues been mostly ironed out of the Gen 4s? Sorry it's such a long post, and I did try to do a search for a similar post before asking all these questions. Thanks for your time/knowledge everyone!