84-85 mph could be very good speed in HS, if the scout detect room to improve on mechanics or physically (Late growing kids). Dennis Martinez used to throw 79 mph in HS. At major league he reached 91 mph, and had a terrific big leagues carrear. Figuring the prospect's potential is one of the skills that a good scout needs. If those kids walked on to that work out with out invitation, they showed courage and positive actitud, that also is needed to be successfull in baseball. It is not their job to know if they are prospects, that is the scout job, but if they don't show up, there are not chances at all.