Hopefully the final stage in the saga of the battery tray is the addition of a reinforcement plate.
This has a box section that sits on the rib that runs across the bulkhead which transfers the load of the battery vertically down.
Without this the centre of gravity sits out ahead of the bulkhead and creates a rotational force which creates stress leading to cracks.
With the reinforcement plate painted to match the bulkhead it does a good job of covering up the riveted patch plates and will hopefully mean this area of the car doesn’t need more attention.