Baseballs50,
Do you mean May or March? I would think nearly all top prospects have been seen before May. The draft is in June. Yes, if they are back in May it would be a good indication, but not necessarily a sure thing with the draft.
The better the prospect the earlier and more often they want to see him. The scouts pictured above were there to see top "04" prospects in January, 5 months before the draft. Even more scouts show up at our PG Predraft in May and that's usually 3 weeks before the draft. Truth is, the more they're around, early and especially late, the more serious the draft interest. When the Crosschecker shows up it's even more serious. When the Scouting Director shows up it's very very serious, usually high round, interest. Unfortunately, the interst level can go up or down a lot on those days.