ive got a dtr and a proper spark plug tool, its got the 45degree nuckle joint in it and i can slip it over the top of the plug then move it around so i can give a little pull and out she comes, just take the bite off it then in with the hands you go.
the trick is not to over tighten it for the next time, you want it nipped up so you cant turn it with your hands but you dont want it nipped up so tight that when you come to take it out it doesnt want to come out