sj, as gato mentioned training a mustache to the sides does not have to result in a handlebar. I train mine to the sides so that I can use the length to add bulk to my stache as the beard gets longer. In fact, I sometimes wish I could handlebar, but it simply doesn't work for me. The nice thing about training your mustache to the sides is that if you let it get long enough, it will eventually start going over your lips again, but you can trim it at your lips line and not lose much bulk because you are only trimming the bottommost hairs that just wont stay with the rest.