Obviously PG is best to answer your question, but like BOF states not many will want to be told that they are not a prospect nor a lot of families which have no chance spend a larger sum of money to attend a showcase, but I am also of the belief that there is an amount of overlap in the skill levels of DI, DII, DIII, Juco, and NAIA where one can find a program that they will fit in. I often times state that where the program is may not be where the player would see themselves play at or want to attend school academically, but they could play.
If you actually recruiting for a program and using it as a source of players, you may in fact want to look at the 5-6 ranges that you can motivate to play at a DIII program based on academics and opportunity to have a chance to play.