Launcher position is critical! For best results try sitting directly between the handles. Sitting too far forward results in low launches. Sitting too far back results in launches without forward projection, potentially causing collision with Jumper.
Jumper landing zone is also critical. The jumper should aim to plant their butt directly over end of wedge, approximately 3ft (1m) from inward end of bag. Landing in center of bag yields poor results and may cause collision with Launcher. Jumper should land in sideways sitting position. Landing on feet, front, or with legs split results in sub-standard launches.