I don’t expect rates to drop in a significant way unless there’s a recession. In that scenario I’d expect home prices to decline moderately as well. So let’s way we get a recession and rates drop 100 basis points. Home prices drop 10-15%. Do you have enough entity so that you still fall into a conforming loan to get the lowest rates. I.e. is your LTV still < 80% if home pries fall moderately. If yes might as well wait since we're somewhat overdue for an economic downturn. If not then the decision gets more complicated.