I had the same issue this past week. I tied the gyp to something the keep her head in place, I put my thigh between her front and back legs using it to push her back legs and feet back. I had my back leg behind her. If your male is not used to breeding have someone walk him straight up behind the gyp with one hand I pulled the gyps vagina straight up and i guided the male with the other. Once the male was in i held the gyp back legs and the male did the rest. It was strange see a gyp hang so low and that big my male fell out 4 times before i got a meaninful tie.