personally i think if a fancier wants to mob fly then thats there business and there money, i have flown in clubs where someone sends 60+ birds a week, yes they won some but not all, others still won, and when you beat them you feel even better about it, it only takes one bird to beat them, at the end of theday would youi rather win a race flying against 100 birds or 200 birds, my own opinion is the more the merryier