I strongly feel/believe that the same codes SRA/SRB/DRP etc. that are applicable for CSP currently will get enabled for CGSP and SGSP as well. Currently the system throws error when these codes are applied on the CGSP/SGSP accounts. Maybe they will sort this, rather than issuing altogether new codes and BIN for CGSP/SGSP.....
If you notice all the tiers (silver to Rhodium) are now uniform for all main variants (CSP, CGSP, SGSP)..
PS - This is not a fact, but guess.