For the longest time I have been doing low volume training for my bi's. Here is what it looks like:
Barbell Curls 3 sets 8-12
Incline dumbell curls 3 sets 8-12
I have read a lot about low volume training and they say it is the best way to train bi's, but recently it seems as if it just isn't doing the job. One day I switched it up to preacher curls and hammer curls, same sets and reps but really didn't do anything either. Should I add more excerises, more sets, supersets, what? Help me out here guys.