Hi everyone, I'm looking to possibly refinance two of my current fixed rate loans. Loan 1 is an FFEL Consolidated for 21k @ 7.88%. (179 payments left) Loan 2 is a Stafford for 10.5k @ 6.55%. (116 payments left)

Looking at Sofi, there are the following options for borrowing 31,500: 10 year fixed 5.875% Payment 347.74 10 year variable 3.91% payment 315.19 15 year fixed 6.625% payment 276.57 15 year variable 4.285 payment 234.98

Currently, I'd be putting a minimum of $400 a month on the loan. I make about 80k a year in a good field (Health IT), and am not worried about job security. My gut instinct is to go with the 10 year variable, gambling that the LIBOR rates stay low. I am hoping to have the loan paid off in <7 years. The benefit of the 15 year plan is the added flexibility with the lower payment. Any thoughts? Is going with the variable rate too risky?