There is an article in this months/next months(not sure) bassmaster regarding I believe Dream Lake and how they don't allow the use of braid because they at one time would find fish over 5lbs dead with a hook and braid in them because the braid would break on fights with fish over 5 lbs because it wasn't as abrasion resistant as flouro.

I've had braid snap on cast and backlashes, but only because of severe shock. I've never broken off a fish with braid, and neither have my partners. And that includes Largies up to 7.5lbs and Muskie u/Pike up to 14lbs + with no leader. If people are consistently losing fish, even 5lb+, because they're braking braid, there is something odd going on.