Gov posted:PG grades help increase exposure. If a player has a very tight list of targeted schools an improved PG grade will be helpful as a cross reference; the college coaches look at everything, especially with a player they haven't seen actually play. Both PG and PBR. They're filters.
If a player goes to a high academic camp and the coaches like him, they will look up PG or PBR as a cross reference. They'll use it as a resource to further evaluate that player. Because they will need to see him in real competition, especially position players.
It's a different process when a kid has a very targeted college list - going to regional or that colleges camps. If a kid has no clue where he wants to go and keeps improving his skill set he should continue to try to improve his PG grade. It can only help..
At some point you're dealing with the growth curve and projectability of the kid and finances of the parents.
Same thing with a well-known travel program or a scout team. It's another source of information, an external validation if you will.
So if a kid has a 9.5 or 10.0 from PG, that tells a coach something. Same thing if he plays for, say, the Canes. That tells a coach something. The coach is still going to want to see the kid play, but external validation has value, IMO.