| 10-20 sets?, do you mean 10-20 sets per muscle group, or 10-20 sets per exercise......
ie. 15 sets or preacher curls, 15 sets of reverse grip EZ bar curls, and 15 sets of (enter bicept workout here) ________
or is it
5 sets preachers, 5 sets ez bar curls, 5 sets hammer curls | 
