I know there are a ton of posts out there but wading thru them took me several different directions, none of which met my situation. My specific need is an IWB that will work for daily business casual dress. Untucked shirt is not an option. Daily attire usually consists of a tucked long sleeve or golf style shirt with docker style pants. I have a full range of motion with standing, sitting, driving, and occasional squatting. My prefered carry position is 4 o'clock but I can adjust if it means a comfortable carry for full size MP9. So far my carry holsters have been leather or nylon (i.e. soft vs Kydex etc) but am open to best option there as well.