good healthy yb birds will fly 300ml in a north west wind naturel or darkeys biggest prob is yb sicknes members dont now when thare birds have the first sine of it till thay lose half thare team and rapping them up in coten wool for next year to hit 200ml in a nw wind and them going down like delboy on big bamby i lose doos the same as every 1 els but keep going i never pout doos by for next year thare to short lived and i do ok yb to the last yb race and yearlings to the coast and you wont go wrong