I'm playing 11 year-old Burner 2.0 irons that are extended by 1". That doesn't seem very old, and I've been hitting them pretty well, but in the last 3 weeks both the 4-iron (pic below) and 5-iron heads have snapped off at the range. Neither strikes that snapped the heads were notably poor (i.e. not a huge divot or anything) but sailing away they went. I've been kicking new irons around in my head for a while, but had been playing these well enough that I was gonna stick to them. However, I'm somewhat concerned this is going to be a continuing trend with all my other Burners. Anyone have some thoughts?