Zott's..
I think Zotts are a better all around size gainer. Most of you think the wide grip barbell is better but the Zotts hit the outer bi's much harder when done properly, and give a more rounded v.s. peaked arm.
I noticed also one of you said a Zott is a "regular dbell curl" turning out on the way down. Not excatly, to properly do a Zott you need to sit on an adjustable bench so you get good firm back support, to keep from cheating, and from the start to mid point,(all the way up), you turn your wrist all the way out. Like when doing fore arm curls, so as to remove the forearm assistance all together, then turn at the peak and come down. 4 sets of these and your entire upper arm will be on fire!!