I was considering buying a Kaywoodie, but I'm concerned about the metal stinger insert. Does this prevent running a pipe cleaner through the pipe? Is the stinger removable? How do you clean the pipe if the stinger can't be removed? I've had other inexpensive ($15) no-name pipes with stingers where I've just forcibly yanked out the stinger, but I'm not sure I'd want to do that in this case.