Roger what RHBee said. worse comes to worse you will hopefully have two queens laying, and instead of over wintering the nuc, you can do a join later if you wish. With more queens laying, it equals more bees. always good to have nucs with laying queens around a plenty. Always. Need a queen for some reason? you have a nuc with one in it. need more bees, you have a nuc with some in it, or even brood frames. When your hives come out of winter and are weak, always good to have nucs around to jump start their build up in the spring. over winter nucs side by side next to each other and they all help keep each other warm, and if you lose some or even all...what have you lost really? nothing, except a initial few frames of brood, which can always repay back later after the new queen lays. still plenty of time for that.