I have been told by my boss I will be on the boat for a while. Like in 5 more weeks while. I was not to pleased. But it's like they say when life hands you lemons make lemonade... So here is what I am thinking, I will have some extra cash that will be burning a hole in my pocket! I pretty much decided my G30 needs a new friend(s) & I am a 45 acp kinda guy. So, I will buy myself the G21. What I would like to know is this, G21 or G21SF is there a big difference? I will try both but would like some feedback. Second I will be purchasing another pistol more than likely. I am really thinking about getting a 9mm. I like to shoot & from what I have been reading from past post it is a relatively "cheap" round compared to the .40. Here is the dilemma...which Glock 9mm? I plan on going to a gun dealer that has pistols I can rent so I can try them out before purchasing. But like I said before I value opinions of people that have the guns I have mentioned. So if y'all will let me know what y'all are thinking I would appreciate it. Thanks in advance friends!