A lot of our FSM workloads seem to extend base configs that they do not need. For example, cleanup_orphaned_while_migrating extends sharded_partitioned_base and doesn't use anything from this base. And many tests extend the random_moveChunk_base either entirely unnecessarily or only to have a partition for CRUD. Not only is this confusing, but also extending this base generally requires the balancer off and so we have a lot of tests running manual migrations rather than the balancer.