Picked up my Xd-40 @ gun show and have put a couple hundred rds through so far. I am happy w/ it, but always looking to improve. I was grouping good but consistantly right . I am a pretty sure its the longer heavier pull of this trigger. What are the recommended mods to start w/. Looking at the rod and spring, but not real sure of what I will gain. Is trigger a good start or other things? Also I already started getting surface rust on slide. It wipes off easy, but I can see it will be a ongoing thing here in humid FL. Any recommendations of controlling this? BTW this gun is HD, truck gun and some carry. Not target pistol, but still want some "bragging" accuracy when i shoot w/ my buddies. Thanks in advance.