Convert a Test&Dev DB from K-Safe=1 to K-Safe=0

Only for a big data specific test I need to temporaneously make space in the system and eliminate data redundancy. My question is regarding the process to move from K-safe=1 to K-safe=0. For example i have a base table named "fact_data" and 4 nodes, so 4 segments: node001 -> superprojection segment fact_data_b0, buddy on node002 -> fact_data_b1 (size are similar but not exactly the same) node002 -> fact_data_b0, buddy on node003 -> fact_data_b1 node003 -> fact_data_b0, buddy on node004 -> fact_data_b1 node004 -> fact_data_b0, buddy on node001 -> fact_data_b1 Is enough to drop buddy projection fact_data_b1 and MARK_DESIGN_KSAFE(0)? any other system parameter to setup? Reverse process will be recreate projections with OFFSET value and refresh. Many thanks in advance.