Ahl....if I understand you correctly, that is what we were thinking of doing. But instead of cutting out the drywall and replacing it with the plywood we were thinking of just placing the plywood over the drywall. Do you think that would be strong enough?

To be honest I would think that this would be strong enough. But the customer doesn't want to take any chances and wants us to reinforce the wall more. I'm not sure if I understand how people use 2"x4"s but do you guys place them vertically inside the metal stud with wood screws? Sorry but if you guys can elaborate that would be great. Thanks!