I have seen good strength and size increase on my arms with doing Skull Crushers and super setting right into Curls. I use the easy bar to do this.
I start with the bar and 25's, then move to 35's, and then to finish off with a set of 8 with 45's on the bar. From time to tme I get a full set of 10 in there....
It's all hard work...But the looks ya get when you put them 45's on ana dstart curling away.....It's worth the effort and hard work....