Hey, so basically from the start i had problems with training my biceps. Its feels like a Yoyo affect, at times my biceps are always sore after training and thus my muscle would grow but then there are the downfalls which is now... my biceps havent been sore for over 3 weeks now, hence i wasnt permitted to increase the weight. So my routine is basically 4 sets of 8 reps each... including a 45 second break between each set. Just yesterday i tried a 2-2-4 tempo and still didnt affect my biceps. I usually start with seated dumbell curls, followed by reverse curles (EZ curl Bar) after that I do hammer curls and as a finisher I hit the preacher wide grip curls. Please help cause each time i go in there to train biceps I really wreck it more than any other muscle and seeing no progress in the weight i lift is kind of annoying. Just to confirm, Yes i do pay attention that i dont swing the barbell and I make sure my elbows stay fixed during the whole workout. Thanks :D