Mercedes' struggles - Should 'zeropod' concept be abandoned?

Mercedes unveiled its striking 'zeropod' design at the second pre-season test but has struggled to unlock the potential in the W13's concept.

The Silver Arrows have been plagued by consistent aggressive porpoising yet have still managed to pick up podiums along the way to remain the third quickest team on the grid.

But with a sizeable deficit to Ferrari and Red Bull and no end in sight for the team's issues, should Mercedes revert to a more conventional concept?