Like everyone else here I've acquired more than a dozen holsters in various styles, carry positions and material. I can tell you what I like and don't like thus far, but absolutely everyone is going to be different. I don't know a single person that agrees when in comes to the "how-to" part of carrying concealed. I like shoulder rigs in the late fall and winter when a jacket is the appropriate attire. I also have a "chest -band" type or what my wife joking calls a "the man's gun bra" but only in cool weather because you have to wear a t-shirt under it with another shirt to cover. I like the fully enclosed pouch type with a snap, made to be worn on the belt for warm weather carry. These will only handle small semi-autos or J-frame type revolvers but they do conceal well and most people don't pay much attention to them as they look like a case for one of the larger smart-phones. I also use a Bianchi #1 for the J-frame in the summer with a un-tucked shirt. Keep in mind that I'm a left handed shooter so my choices are much more limited than 90% of other shooters. I don't really care for pocket holsters, never found one comfortable. I really don't like IWB holsters, for me they are the least comfortable thing that I've tried. So, the best advice I can give anyone is this.... Understand that you are going to buy holsters of different types and carry locations and and quite a few of them you are going find that they simply will not work for you no matter what the advertising says. You will end up as your instructor mentioned with a box full of leather, nylon and kydex and out of that box 2 maybe 3 will be the ones that you settle on as "good enough' but virtually none will be perfect.