no as a rsponsible breeder i would not do that.apart from anything else from a legal standpoint you must explain this to the potential owner and get them to sign that they understand the conditions of sale and sign the contract knowing full well what they mean as you have had them explained to you.anyone who puts endorsements on pups and doesnt tell the prospective owners is on a hiding to nothing.as for getting an endorsement lifted and put back again i dont know the answer to this as ive never done it.i have had folk sign saying they will only mate a bitch with my full knowledge and approval of the stud dog used.but tbh i dont know if even this can be enforced in law.i mean what if they go ahead and use a dog you dont approve of ?can you sue them and if so what for?i would hope anyone would ask my advice and opinion and only mate to a dog i approve of but if they dont i dont think theres a lot i can do. :unsure: but i wouldnt be happy about it :angry: