Tried TNW's method last night for first time. An hour before I marinated the split bird in two packages of McCormicks Grill Mate Mesquite...that plus the method of cooking was very good. I used two spatulas to turn and that was sloppy to say the least. Try it for a change.
PS With the chicken all spread out that way it looked like it had been airborne when it hit the windshield and a "splatted cock" is perhaps an alternative name!