Was just wondering if it is practical to carry a 4" revolver for conceal carry? I have had a 2" revolver in the past and that was a nice pistol but stupidly got rid of it. I seen a 4" Smith for a good price and thought about getting it. Also, I kept the holster from the other revolver, it's leather and it's open where the barrel goes thru. Would a holster like this be ok? Just looking for some advice.