very interesting article,,,pigeons are naturally gregarious, and fly more confident in a batch, but if their trained at an early stage to have confidence flying solo, will definately benefit them even later in life, but i would only do this after a little experience, this would take time but would be worth it. the only thing i would say is ,if you are singling them up, make sure there is enough space between them, as they will take longer to clear, to begin with, if you put them up before the first one has cleared, they will then get in to the habit of flying round waiting on the next one going up, only my opinion