Hi Barbie. :) Well the Cycle 1 part of BRX calls for heavy lifting, 3 sets of about 6 reps w/a 3min. rest in between. So for that I use Slow&Heavy, follow the exercises, but when Cathe's doing 8 reps or so, I'm resting. Or if its not enough time, I pause it. For C2 and 3, I've used MIS and PS...