Just purchased the XDM 4.5 barrel in .9mm today. Very exited--it's been a long time coming; this is my first firearm purchase. The "M" was a last minute splurge, I've shot all the normal XD models and loved them; the M just happened to be on sale and the dead hot trigger pull alone converted me at the counter, not to mention the match grade barrel and smaller grip insert that will be nice for my wife. That and aesthetically speaking, the bi-tone XDM is a beautiful weapon. Any tips from experienced users on practicing and getting accustomed to my new pistol? I grew up doing some shooting with my dad and his Beretta, but this is the first time I've really had enough access to a firearm to really practice, per-se, and I definitely want to! Also, do most XD/Ms have sketchy stock sights? The dots on my back sights are kind of blurred and blemished--not that big of a deal, and to late to return the pistol now. I'm probably going to replace them with something nicer anyways. Maybe Springfield would spot me a replacement back set if I make a claim?