The OOM PAUL shape, to me, is near perfect. Formally it is a quintessential / caricature of the pipe, while functionally it performs like a champ. It hangs out of the way of your view, imposes less force on your teeth, and the tall bowl allows for a long smoke - furthermore, you can drop it into your chest pocket and it will remain upright and not start a fire / spill. Regarding it's shape, it is the most graceful feminine form of any pipe, especially when fitted with a curvilinear taper stem. Let's hear what you think, besides the only drawback of fighting a pipe cleaner for those who insist it should be done without removing the stem