... noted the most difficult individual PT sections in all three pre ... -star: 5-S1, 7-S4,17-S2, 17-S3, F97-S1, 23-S3 ... , 8-S4, 9-S2, 10-S4, 11-S4, 12-S4, 14-S2, 14-S4, 18 ... , 45-S1, 62-S2, 69-S4, 70-S4, 71-S3, 72-S2 ... challenging myself with doing the PT A, B, and C LG ...