Yeah, when I first received the Dura Ace 7410 cranks to rebuild my '93 Trek 5900 OCLV, my first thought was "Am I gonna break this damn thing?" They're much lighter than my other Shimano and Suntour cranks... which I've also never borken.
Because I named my Trek 5900 the Noisy Cricket.
Because of Men In Black.
Because it klunked so loudly with the original downtube index shifters, resonating like bongos in those carbon fiber tubes.
Because it was my first carbon fiber bike and I felt like I was gonna break something so lightweight.
Hey, it was funny when I came up with that a couple of years ago. To me.

Then I remembered I'm not Andre Greipel, who puts out more power going to the bathroom than I do on my bike.

Whew, what a relief.

Anyway, cranks asploding was never my primary concern. Apparently on my cheapskate budget I will never be in the market for those newer hollow bonded Ultegra and Dura Ace cranks. So, problem solved once again by poverty.