If you guys don't mind my virgin opinion as Im new to HS baseball.
At the first practice of the HS summer team the HD coach asked some of the pitchers to step on the mound, he would like to take a look at what he might have. Now keep in mind these were kids that at that time would be freshmen in the fall. As I stood on the outside of the fence the HD coach stood about 6ft from me as we watched these kids work with him saying nothing but " ok next ". This one boy stepped up and he stood about 6'tall and was around 160lbs. After 3 or 4 pitches with a velocity at the 82-84mph range the coach spoke up as if to speak kinda under his breath but loud enough to hear and said "I'll have that kid throwing about 92mph when he's a senior, I'll get him a scholarship". Now I don't know how relevante this is to the scout being it was a HS coach but it was the speed that he liked