Tomo, yes, the goal of cycle 1 is to bulk up, and yes, it usually involves some weight gain (the only exception I would see here is if you're a newbie and still able to lose fat / gain muscle simultaneously) Most people I've seen starting BRx have done a few BFL challenges so they are no longer 'newbies' (like me, I can't do both anymore, it's one or the other).

That being said, those of us on this board who've been using BFL and BRx for months to gain muscle/ lose fat have been doing it LC - totally negating that concept that carbs are necessary for muscle growth. Yes, some are required, but 240g is not.

IMHO, it's the protein that is far more important of the 3 macro nutrients when muscle growth is the desired result. It is also important that you eat enough to allow growth to occur caloriewise. This means making sure your fat intake is high enough.

It takes some tweaking - but once you're closely in tune with the old body you get to know what works for you.

Good luck!
Nat