ACC 3-49's for over 8 years, and off and on prior to that.

27" arrow with 100 grain points and Blazers weigh in 381ish grains depending, mine do.

FOC is well above 10% but I'd have to do the math, I have excellent flight, have for years and group mulitiple fixed blade heads. You get away with heavier as Jeff did.

Yes, they bend but not very easily. I've shattered more than I've ever seen bent.