snapping shafts has nothing to do with the driver and everything to do with you and your swing. What are you putting back into the driver? have you been fit for a shaft? You look like a pretty fit dude who could swing pretty hard.
I bought a TM tour burner with the stock stiff and it ended up being too soft for me. I wasn't in danger of breaking it, but it still didn't fit so i put a proforce V2 76g shaft in it. It may just be that you need to do more research on your shafts before you shell out the money for a new one (or a new driver). Not all factory "stiff" shafts are created equal. Taylor made's stiff may be firmer or more flexible than Ping's stiff. That doesn't mean you need to get one or the other, just need to get the right shaft in the driver you like. Demo days are really good for this as reps bring a multitude of shafts with them to try on multiple heads.
Go to your local pro, golf galaxy, or somewhere that has a launch monitor and get on it. Get your numbers and see if you've got the right equipment.