Advanced scouting won't help you w/ your draft picks, its only for prospects that are currently in the world. Your high school and college scouting will tell you their potential pre-draft, not to mention the higher you buget there, the more prospects you'll see.
I'd lower your advance scouting, and put as much into HS/college scouting if you have a lot of compensatory picks. You won't get perenial all stars with those picks most likely, though you can often find good roll players, very solid setup man, strong catchers, defensive SS, etc.. Players worth having on your 25 man roster one day, and if you're lucky perhaps an all star slides thru the ranks to you at one of those picks.