A configurable lookup table extension system including a plurality of lookup tables arranged in an internal memory, an external memory, and a flexible controller configured to couple at least one of the plurality of lookup tables to the external memory through a single memory interface is disclosed. The insole has heel, mid and forefoot sections. The compositions are useful for preparing ion exchange membranes. The correlation is compared to nominal values. When the backup copy is later used to restore the data set of the node, the \u201cbacked up\u201d value of the state data of the restored data set serves as a notification to the replication server of the node that the data set has been restored, so that the replication server will switch to a new Node ID for labeling new changes for replication to other nodes in the distributed system. The flexible support member may comprise wire.