For the record, I own a 3-dozen EAW line array boxes, a bunch of SLS line columns, four each of your (or Tom's) GH-60 and SH46. I have an understanding of how a line array versus point source works. But I do not know how to classify the GH60.
JR
The GH 60 has a pattern unlike anything that I am aware of. Because of the amplitude shading the energy is much louder in the "hot" part of the horn-which is NOT facing straight forward-but rather 20° down-than the lower part of the pattern.
This does not work for every application-but in certain situations (like at lambeau field-Greenbay packers) it IS what makes that system work very well.
Loudspeakers are simply tools-and the same tools is not right for every application and different applications need different tools.
That is the reason I always say you have to "define the target" THEN figure out what is the proper tool for the job.