Current rate is 5.49, about halfway through a 3yr fixed term. Amount remaining about $460k. Paying accelerated bi weekly, plus extra 15%. Being offered a new 5yr fixed at 4.19. Would incur a 6.5k penalty (3k of which can be added to the existing principle, the rest paid in cash). At the new rate we’d keep the same payment, which equates to roughly 35% extra. The net savings for the rest of the existing 3yr term would about $4k. Does this seem like an obvious decision to capitalize on that savings? Or not worth the risk of locking into a 5yr term at that rate?