You just took too big a bite from the apple, don’t blame the apple. 420k for 30 at 5% is $2250 P&I. Get in contact with HLS, have him monitor the intraday rates and refi to 30 like the rest of the world. At your current accelerated rate of paying off your mortgage you are accelerating your date with your maker. It’s o.k. to take it slow, financing less than 2x your income is fine in a market like carlsbad and you will live more comfortably, owning outright by 50 is obvious too lofty a goal so modify your goal, perhaps you will live past 50. With your income you are going to be paying full boat for the kids college so invest some of the savings from your new mortgage into an education roth, spend less time at work and more time drinking wine, smoking cigars and watching internet porn, all three work wonders on your blood pressure. For gods sake send those kids to public school, you already bought a house in one of the best school districts in the world, at least 20% of your value is because of the schools, take advantage of it. You remind me of richard gere in pretty woman who pays for the penthouse but is afraid of heights and wont go on the balcony.
Look at your numbers, they are enviable. I am 41 and i just took out a 30 year mortgage, I have two kids that will both be in college within 6 years, I make half what you do but my mortgage is more than half of what yours will be if you refi and I feel like I won the lottery while you are a bundle of nerves. Literally dozens if not hundreds of readers live vicariously through me and you can beat me and make me look stupid, so do it, get off the treadmill already and enjoy your time on the planet. Perhaps my view is skewed, I didn’t knock down an 18 hour shift to come home to the home schooler wife, I smoked an arturo fuente don carlos and opened a bottle of cab, saw that the celtics and the cavaliers lost and if I checked my blood pressure it would be 120/80 at worst. Find balance in your balance sheet, come to the dark side, we have cookies.