might as well go all the way. pops always told me don't do it unless your willing to go all the way with anything you do in life. give 100%. Not swallowing is like reaching the finishline but not crossing it. And that just plain out stinks.
I tried and succeeded. It HURT in my ribs and back and liver and lungs man. I was about 12. I got so far as to put my teeth over the head. It hurt too much to use it for masturbation. But now I do know what my own cock feels like in my mouth. LOL