Back squat, Rest 3:00-4:00 b/t sets

Build to heavy 3 (H3) @ RPE 7 (3 RIR)
+
3 x 3.2.1 @ 90+%H3 (RPE 8)

– Build to a heavy triple (H3) with 3 reps in reserve.
– 3.2.1 = cluster set of 6 total repetitions: 3 reps, rack the bar for :10-:15, then un-rack the bar and do 2 reps, re-rack again for another :10-:15, then unrack and complete the final repetition.
– Start the back-off clu