Hitahomer,
I went to this showcase last year.It was called the professional scouts indoor charity showcase.
It was ran very well.Pitchers threw on two different mounds(so hey could be seen my everyone)catchers caught about 3/4 pitchers each.Catchers threw down to 2nd,Infielders threw a distance equivalent from 3rd to 1st base,you ran a 60,and hit live BP.
Very well ran.If you do attend down the road,be prepared to spend all day there though