I am finishing my third week of doing 15's, 5's and 10's each week. It is much less boring than the standard 2 weeks at each rep range. I see no big difference in gains but I am at a point where I rarely see significant gains anyway. The advantage I see is that I think I can do longer HST cycles this way. Granted that I will be working at my max for any time after week 4 or so but I don't think RBE will be as big a problem as it normally is because I hit each rep range only once per week. The only disadvantage I have come accross is that it requires a lot more changing of weights over a week"s time frame and requires meticulous record keeping for old farts like me who can't even remember what we had for breakfast, if we remembered to eat it, more less than what we lifted for 15 reps 7 days ago and then have to adjust that amount upward.
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