Worn Out Flybar

[Cman]

Good Day

I have been reading alot on these forums and have noticed alot of reference to a worn out flybar, or flybars wearing out. Stupid quesiton. but what portion of the flybar is wearing out? is it the balls where he links attach to?

I'm curious because mine must have over 100 batteries through it sense i first aquired it and rebuilt it, havent had to change a part sense. I cant see any wear on it but maybe I'm not looking in the right spots.

Thanks

And I wish HH kept this heli as i love it for orientation and living room winter flying