Meul, I happened to notice you talking a lot about curls or doing a lot of curls in your routines. Not a problem, but I'm asuming you'd like to build your arms. The triceps group is much bigger than the biceps and if you build your triceps, you will notice bigger size differences more quickly. Also, if you train you neglect your tri's and only work the biceps, you will eventually reach a point where your body will reject muscle growth because it just won't work (my bro's a perfsonal trainer, so I'm not just pulling this stuff out of my ass). Also, for a really good "pump" try strip-sets. This is where you select 3 weights you know you can curl in descending weight (ie. 15kg, 10 kg, 5kg). Just any 3 weights with a similar drop in weight. Then, start curling the heaviest weight, do it 5-10 times. Drop the weight (not literally) and instantly pick up the second weight, curl it 5-10 times...you get the picture. If you'd like me to give you some triceps exercizes just PM me Cheers P.S. I have no idea of your weight lifting background, so forgive me if I talked down to you in anyway...just trying to be detailed