Once the sill is welded on, we weld around the jacking point like the factory. Note that we plug weld the outer sill on. We have tongs that will reach around, but because the inner sill and floor are already spot-welded at this seam, the outer sill introduces a third layer, which is tough to get a strong spot weld on with big tongs – you lose clamping force. This is undoubtedly why the factory made the floor and inner sill as one – so that this was a “one-on-one” seam here – the optimum for a strong weld. The sills hols the car together, so we use super-strong plug welds.