I had to modify my "Super Billy" by cutting off the head. The shape of the head was allowing air to enter me on every stroke as well as preventing a deeper insertion to get to the girth. You want to be sure to use a good sharp kitchen knife, like a filleting knife. Now here's the thing, THINK BEFORE YOU CUT! once it's done there's no turning back. Plan your cut so that you can make ONE CLEAN CUT, avoid any kind've back'n forth sawing effect as this will make the cut irregular and jagged. Also if you make a straight cut, you'll end up with a sharp edge all the way 'round which you'll probably want to trim to make it rounder to ease insertion. I was lucky, the "Super Billy" has rounded rib details under the head so I just followed along those cutting off the head at a front to back angle. Still a bit of a blunt end but the angle and rounded edges help with entry. Alternatively, try a different position, you may be trying to be right on top of your dildo. Consider setting the base on the floor up against a wall, then angle the head away from the wall at about 45 degrees and back yourself up to it entering from behind. Good Luck & Have Fun!!

Happy New Year!!

I cut down a tapering dildo cos wanted to get to the fat shaft at the bottom. A micropane - kitchen grater, was great to rounding off the sharp edges left after cutting with a knife. It was sharp enough to cut through the latex smoothly - hope it works for u