Less Drag Tip #1

The Mad River Rocket Sleds come with a lip on the back shown here.

See that lip on the back? That catches snow and creates a lot of drag.
We want something that looks a bit more like this.

The smooth back of this second sled will make it noticeably quicker. I'm sure there are a lot of ways to lop off that lip. How do I do it? I get on my angry face and take it to the metal grinder.

Then I change my angry face to a scared face, then to a relieved face. Then I do a lot of yelling, and eventually I have a much faster sled.