Listing the person with the higher credit score as the primary borrower, ... may knock as much as two percentage points off the interest rate.
Welcome to the cold reality. A lot of people selected short-term interest rate product and are now beginning to see how these things benefit the lender.
What is new today is that lenders are allowing for the layering of risks on top of one another. What we don't know is what if we put all these risks together and put them in a rising interest rate environment, a declining housing market, or a weakening economy.
The optimal thing to do is to lock in your interest rate.
Someone who will be out of their home within five years to seven years can save some money with an ARM. But you have to be aware of the reality that interest rates are likely to be somewhat to significantly higher in three years, five years, 10 years down the road from today.