The more common one that I have seen being used is the first you described. The other option that you mentioned would work, too.
I know it's probably not the answer you're looking for, but you'd be fine with either one. As long as you put in the work consistently, you'll see progress. Whichever one jumped out at you when you first looked is the one I would try first. Run it for two cycles as written. See how that goes and adjust. Maybe try the other one next.
Jim has mentioned "eating for performance." In your case, you want to be bigger, so you need to eat like you want to be bigger. Whatever you're eating now per meal, make an honest effort to add something more than what you usually have at each meal. That's how you get bigger. You could do all the sets and reps you want, but if you don't add to your intake, you won't get any bigger.