Not a good idea. Some times your first chance is your only chance to make an impression. If among any of these investors are people he would want to raise from

Not a good idea. Some times your first chance is your only chance to make an impression. If among any of these investors are people he would want to raise from (and god I hope people are choosing their investors more carefully than who is writing a check), he'll want to make sure he doesn't fund his first impression by giving a bad pitch. He should only pitch if he feels he really wants to and that he's practice his pitch to satisfaction. If he is just looking for feedback and not funding, he shouldn't be pitching, but rather approach it honestly and ASK for advice. This way it will seem less like a pitch and more like open for suggestions.