marion, well i see perry is picking on jack, and jack starts picking on me (i'm the squirt he's referring to)............
anyway..........sometimes i can get away with going up, most times i take a couple frames out (make nucs) and give them more space up.
also like jack said, first year queens usually won't swarm........but............
i don't checkerboard, but i also will add foundation (don't split up the brood) and will add space above. also, where did you place any honey/pollen frames in the bottom brood box?