I'm considering doing another refinance myself. I went from 30yr/5% -> 20yr/3.75% in February and I think I can get to 2.75% or lower depending on how many years (15/20/30) I go for.
The big question is what my appraisal would be. I have PMI still, and I'd like to get it off, which normally requires a refinance. I figure I might have to pay to get up to the 20% to refinance without PMI if the appraisal isn't high enough.
Our last refinance we got PMI removed and did it without an appraisal but I know there is a specific formula they use to calculate that