NUKE83 - very informative link.
Did have a question about the Incentive Bonus Plan. Reading it - it looks like, for some strange reason, the accrued bonuses get netted against the CSP plan, if the CSP plan gets tapped. Not a huge amount of money ($2,500 if you do well before reaching MLB level), but does not read like an added benefit and certainly doesn't look like an avenue to tap CSP funds prior to attending college.
The example (from link) below is very confusing and would seem to indicate that the CSP money could be tapped before leaving MiLB service (while you are still playing?) in that the bonuses earned come after CSP funds are disbursed.
EXAMPLE: if a participant receives a $3,500 CSP payment and then subsequently earns (a) a $1,000 IBP bonus for being retained on the Active List of a Class AA Club, (b) a $1,500 IBP bonus for being retained on the Active List of a Class AAA Club, and (c) a $5,000 IBP bonus for being retained on the Active List of a Major League club, the $1,000 and $1,500 bonuses shall be reduced to zero and the $5,000 bonus shall be reduced to $4,000 ($5,000 minus $1,000).