Yes, choco.... that is sort of what I do, I try to keep the number of reps constant throughout the cycle as I increase the weight ... this way "work" or effort will increase all the time..... I try to stick to 15reps or 10 reps or 5 reps per set, therefore I need to increase the number of sets and cluster only when I see that by doing 15, 10 or 5 in 1 set I may go to failure, so I abort the set to make sure the muscle doesn't fail, wait for 15 seconds and complete the number of reps..... man, I am surprised at the results.... I had done 1 HST cycle the normal way before, increasing only weight and doing only 15 reps or 10reps or 5 reps with the same number of sets all the time(therefore the number of reps diminished).... and at least for my body it is superior increasing the number of sets... I am sore all the time now and my body is practically changing with each workout, surprisingly I feel far away from feeling overtrained, now I really look forward to each workout.......perhaps for most of the guys the normal way is better..... using the "work" approach makes you increase the number of sets like crazy per exercise.... in my 5's I'll do 6 or 4 sets per muscle in order to keep the number of reps more or less constant....