When choosing mounting locations, carefully consider proper anchor points. One critical one has to do with the positioning of the shoulder harness mount point as shown in this diagram. Essentially, the shoulder harness has the purpose of holding you back into the seat and not holding you down into the seat. Lap belt mounting should be such that the belts fit properly through the seat slots and do not bind. Consult the harness manufacturer or race sanctioning body for more specific mounting procedures. There are a number of considerations to take into account when setting up mounting points for harnesses. Illustration courtesy of Mastercraft Racing Seats.