How do you make dirt jumps? My buddy has a rather large piece of property and we have access to a bobcat. I was wondering how to make jumps out of dirt. Dirt won't be a problem to get as we have friends that own their own pool company and are constantly wondering how to get rid of their dirt. So my question is how do you push dirt with a bobcat and make a jump or a double, tabletop, etc? Is it as easy as just pushing it together and riding a little on it to groom the slope of the jump?