Great to see a good CYA! Long story short: lower your pH to 7.2, then raise your FC to 22. Test your FC and CC every hour or two (you don't have to worry about the other tests during a SLAM) and add enough chlorine to raise your FC back to 22. Keep it at this level until: 1. Your CC is less than .5, 2. Your water is clear, 3. You pass an OCLT (instructions in the pool school). After all 3 are passed you can let your FC drop back to normal level for your CYA. Once it has you can run all the tests again and tweak as needed.
Sound good?