I don't even ever scout 3 ball players twice and it has to be a fairly good 4 ball player to deserve it in my opinion.
honestly in your position, i would scout the 4 ball players twice before the 5 ball ones. With 4 ball you mostly have still solid/good starting skills, but the 12 teams who draft before you would know the 5 ball player better or draft them in a random way(they just know the ball then you choose the 5 ball first) before the 4 ball players.
So the chanche to get a great 5 Ball player is relative less, compared to a 18yo 4 ball player with good potential.