This is problem #1. These two things are not the same, and thus are not necessarily compatible as goals. BBers (nattys, anyway) generally cycle between two phases:
1) Eating at a mild-to-moderate caloric surplus in hopes of gaining some mass (realizing that a certain amount of fat gain is an inevitable by-product of this process); and
2) eating at a mild-to-deep caloric deficit as they prep for a show.
OTOH, the goal of 'size' implies living in phase #1 permanently. My point is, you need to figure out whether being a BBer or a permabulker is really what you want.
This is problem #2. That is, how important is this 'secondary' goal? Because training for strength is not the same as training for size. Oh sure, powerlifters tend to get bigger as they get stronger, and BBers get stronger as they get bigger. But the extent to which these secondary changes occur varies dramatically by training style.
Finally, let me add that I'm not suggesting you have to decide to be a BBer or a permabulker or a PLer. For many gym rats, the process--ie, working out--is the goal in and of itself. That is, they just like going to the gym and lifting, and have no aspirations other than doing something they enjoy. Nothing wrong with that.
tl;dr Decide what's important to you, and that will determine how you should eat and train.