*Starex_Gold: yup that sapphire is like a AIO but the durability is still synonymous to collinite, As for the super resin polish yes that would like step 2, but you see super resin polish is the same like KAIO in the sense that it leaves a very good finish thats pretty much oil free whereas step 2 leaves oils that makes the paint look wet so its either step 2 followed with a wax or KAIO/super resin polish + sealant and then wax

pretty much like

Step 2 + 915

or

KAIO+KSG/Super resin Polish + 915

the purpose of Super Resin Polish is to create a very smooth and clean oil free surface so the next LSP would be very conducive to bonding which means its best for sealants and then wax for ultimate shine and protection

so if you want to go further it would be

Super Resin Polish + KSG +915

but you can't use Step 2 before Super Resin Polish since the oils in Step 2 would prevent Super Resin Polish from bonding

Hope i managed to explain it properly.