Like I said, OHmers got advice from a buddy of mine. =)
As for training more trainees, I don't really recommend it. The only reason why I do is that I train both my PG and SG to be outside shooters. That way, I can train 4 people all at once. If you want your PG to be a normal distributor, then just train 2 trainees at SG. It's a lot more efficient to train Outside Shooting that way. If you're going to focus on Jump Shot more than Outside Shooting, go ahead and get more trainees.