I dunno why i just like randomly thought of this. Like say i usually do 3 sets of 10 reps of 20 pounds for dumbbell bicep curls. What if i did like 5 reps of 30 pounds, then 10 reps of 10 pounds, then 5 more reps of 30 pounds, and so on? Just a random idea it probably wouldn't even help. What do you think?