Before revision:  We show that the load balance in the system improves the same way with d when the service choices are created with XOR's of r objects rather than object replicas , which also reduces the storage overhead multiplicatively by r.
After revision:  We show that the load balance in the system improves the same way with d when the service choices are created with XOR's of r objects rather than object replicas . In such redundancy schemes, storage overhead is reduced multiplicatively by r.