I'm fighting this as well, but I have much higher balances (Law School. *sigh*) and much lower interest rates.
I also work for the U.S. Government and am 4.5 years into the 10 year loan forgiveness plan. I am literally biting my nails and figuratively holding my breath that the rules for IBR and public interest loan forgiveness don't change before I hit that ten year mark (or if they do, there's a grandfathering clause) Because it's a total of ten years rather than 25, and my income will remain relatively stable over the remaining time-period, I'm going to wait it out on IBR. But if it were 20 years or 25, I don't think I would. The ballooning principal is a serious issue, and once you're in the program and out of the 3 year grace period where interest isn't recapitalized into the loan you've basically got golden shackles on to stay in it and are gaming the system that loan forgiveness becomes a sort of third rail of U.S. domestic policy. I think it WILL, but I don't know that I'd be willing to bet my financial future on it.
You could switch to the Income Contingent Repayment program, I believe that has a standard forgiveness period of 20 years rather than 25, and may come with lower payments as a percentage of your AGI too. But ultimately it's your decision to make.