Have you compared the benefits of holding a 30y mortgage over your much shorter 10y? If you have additional tax-advantaged 'head space' it generally makes more sense to go with the longer term and devote more of your cashflow into savings, even though it requires more interest.
I recently opened at 3.7% 30y/fixed (no points). I think it's gone down slightly from that since our closing.
Apologies if I wasn't clear. We actually have a 30 year repayment term with a 7/1 ARM. We bought the property/started the loan 2.5 years ago. So still 27.5 years left on the mortgage.
As you say, my strategy, which I appreciate is at odds with others is to deploy excess cashflow into equities/savings rather than pay off debt at 2.85% (~2% post tax for a good slug).
Just trying to get a handle if others are getting much better rates than 2.85% (given the lack of transparency with US lenders) and it's worth shopping around.