hi pair 2 hens to 1 cock split a widowhood box in half, pair the 1St hen to the cock let them hatch and rear a pair of young ,when young weaned split 1st pair for 1 week then pair 2nd hen to same cock, let them hatch and rear a pair of young when weaned ,the box should have 2 entrances into the same box.start training the hens to the empty box it is up to you if you show the cock on marking night or not ,lock them out of the box when not at racing or training the partition should be removed when they start training and each hen should have its own perch outside its own half of the box .on race day put the cock in the box with doors closed. GOOD LUCK. the cocks should be in another section all week until you need them wullie g