I thought it was the opposite of what you said. If we run early 03-04 spray angle it will spray more in the bowl but a 03-04 cannot runs ours because it will always be spraying out of the bowl. A lot of guys like to run early spray angle on the late 5.9 and I felt it's since there is more play with timing and duration since its spraying towards the center more. Anyone please correct me if I'm wrong but this is what I always thought.