I have been working out on and off for years and I usually use split routines working out any where from 4 to six days a weeks. These routines have always given me decent results but I was thinking about trying a 3 day a week full body workout. My goal is gaining as much mass as I can in a fairly short time. I was wondering what experiences other people have had with these types of routines. I was also wondering what a good set range would be. I have been researching and some people say one set, some two, and some people say three.