First of all, #9 is very mild and will perform minimal swirl removal (as will AIO). #9 has some fillers in it, so it will fill some swirls that it doesn't remove, but these fillers (Meguiar's trade secret polishing oils) will likely interfere with your SG bonding. Likewise, those fillers will likely be removed by the AIO step. If these are the products you are going to use, I would recommend #9/AIO/SG.