i let the person doing the work call the deal,as long as its agreeable,my deal alst year was sending a normal girl to a guy to breed to a lesser,he kept normals,and POL of the lessers,i get the rest of the lessers,,,we got 3 good eggs,,and 3 normals,,that sucked,but when we do studs to other peoples animals,it varies,ususally we just do pick of the litter even if its us doing the work,less for us to deal with once babies hatch out,we are doing our mojave male to a friends normal female this year,and we taking POL,giving him the rest...it all depends on whats most comfortable for you and the person entering the agreement