Hey guys I started lifting a few months ago, I'm an ectomorph body type. My routine is:

Day 1: Chest/Tri Day 2: Back/Bi Day 3: Shoulders Day 4: Legs Day 5: Off day Repeat

I throw abs and calves in there about every two days. I've been getting a lot stronger pretty quickly and was reading a lot of stuff on bodybuilding.com Saw Arnold's workout which they said was:

Day 1: Chest/Back Day 2 Shoulders/Arms Day 3: Legs Day 4: Chest/Back Day 5: Shoulders/Arms Day 6: Legs Day 7: Off

This seems pretty daunting, and from what I've read he would break each day into 2 gym sessions. Just curious if any of you guys have tried this, did it work for you, and what your current routine is?