My strategy is to invest zero money in this lottery and just hope for nothing. I wasted my money on scouting season after season and got nothing out of it.
So I now stopped it completely and will try it randomly. And will be able to spend some money I saved during the season to find a young prospect on the transfer list. There the potential and skills are for real...
To share my experience: I got absolutely nothing out of the group demonstration. First I´ve been quite excited of the result (so many new superstars I´ve thought), but after the interview or latest (for three of them) after I drafted them the "real" skills have been of no use. That´s why I see the group demonstration as a waste of money.