I train my birds from any direction n,s,e or w from young birds i cannot afford to train line of flight and the same for old ones and i do not lose as many as the chaps who tram line .My birds are good old english birds which like it hard look at Marley Westrop and Des Coulter too name just two . It tend to be the sprinters who lose the most because they rarely go over 300mls and they MUST have line of flight. On Mr Vandenabeele he is a super flyer and breeder over many years although i do not have his birds .