CASE 1: Mr. Harjit Sandhu, a 57-year-old truck dispatcher, has type 2 diabetes treated with metformin 1000 mg twice daily and gliclazide MR 60 mg each morning, and hypertension treated with metoprolol 50 mg twice daily. He also takes atorvastatin. He smokes 12 cigarettes a day. His HbA1c last week was 8.6%. He has generalized 5-7 mm pockets with bleeding on probing. His periodontal and radiographic findings are shown in the image. Using the 2017 AAP/EFP classification, which stage and grade are MOST appropriate?