Shouldn't really see any improvement in your score. As the loan ages your AAOA will increase and so will your score. But i suggest you put that 50 a month into the loan like you planned on doing. paying off debt fast with little interest is key.
CHASE FREEDOM | AMEX BCE | | BOFA REWARDS | CITI TYP | Quicksilver | DISCOVER IT | Sallie Mae | CHASE CSP
--------$32,000-------------$30,000-----------$30,000-----------$30,000-----$13,000---------$18,200----------$15,000---------$6,500----
FICO - TU: 780 EX: 784 EQ: 781