The biggest lever is a mortgage advisor who understands the bond market and actually communicates, because nobody can predict the swing for you. We've heard of loan officers telling buyers not to lock because rates are going to get better. That's some of the worst advice in the business; nobody can promise where rates go, and saying otherwise sells false hope instead of managing risk. A good advisor quantifies the risk, tells you what economic news is coming and roughly what it could mean for pricing, and helps you decide when locking protects you versus when floating is a bet you understand and accept. Our default leans toward locking away the risk you can't control. Two practical cautions: - Shop for competence and process ahead of the lowest quote. The lowest quoted rate and the lowest actually-locked rate are very different things. A teaser number means nothing if it isn't there when you go to lock, or if the file falls apart. - Be skeptical of lock-and-shop programs. They sound reassuring, but for most buyers the pricing premium isn't worth the protection. On a purchase around $700,000, small rate moves are real dollars, so the value of someone who can time and defend your lock is high. Sorting that out before you're mid-offer is a lot of what the free Roadmap conversation is for.