I'm getting my first packer, and I'm a little unsure about which one to get. I was originally thinking the small packy (3.5 inch), but it looks like it would stick straight out. I don't want to go with the medium because that looks too big. Then I was thinking the 4 inch Good Vibes, but I've heard that it's firmer so it creates more of a bulge. I'm looking for as little bulge as possible, as I want to pack for my own personal comfort, not for others to notice. I'm about 5'11" and 30 waist pants, so my frame is pretty slim. So which packer would you say is the least noticeable to other people?