I usually spatchcock the bird,then place it in a folding fish grill,Then wire it closed.Its much easier to flip and all the seasoning paste doesn't fall off fron moving the bird around.Something about the bird being stationary seems to help retain moisture also.Mine is a fairly cheap utinsel from a local hardware store.It is also easier to force the marinade (paste) under the skin all the way to the legs if the bird is whole.