Thanx for the comments folks, what I should have added, is, there are quite a few pairs from last season, so they are taking no problem, it,s the yearlings, that will have to pair naturally
Paired my naturals up today as planned, however all I did was introduce 12 hens to the 12 cocks and have left them to select their own mates, you don,t get more natural than that will see how it goes :-/