Players and parents need to be informed to make a decision for their family, but It doesn't matter if the statistics are 1 % or 99% each player will decide on their own if they use the CSP or not.
My player didn't have a large signing bonus but he went pro out of hs and THAT was life changing ...(not the money.) He followed his dream, played ball, traveled all over the country .he was on a first name basis with current and future hall of famers, met movie stars ,politicians and made life long friends. He got a college education on MLB's dime, has a baseball related job that he enjoys and His wife found her job working with MLB and NFL players because of their baseball connection.
Very few will get a 2 million $ signing bonus VERY few. Life has no guarantees, you can make a perfect plan...then life happens. So be informed and do whats important to you.