I got my cage builder lined up. While thinking about what I wanted to do with the new cage, it occurred to me that I might want to change where the lap belts are bolted. In the old car I used the factory connections for the lap belts, but my seat was also mounted to the factory seat brackets in the floorboard. If I got hit hard enough from the side in the old car, the seat and lap belts would move together, independent of the cage.

Now, with the new rules allowing the seat to be mounted to the cage (or more specifically to framing attached to the cage), should I be bolting the lap belts to the cage as well?