the thing is that if someone would break there's trying this then technically it would be all on you.
I've brought my Thunder Wilda's arms WAY past the joint, and it;s fine. Mainly because the joint doesnt' hold very strong. Again, just try it, it does feel like it's gonna break the first time, but after a while, it won't feel as bad.
It's true. It's perfect(As in it isn't too hard to do and isn't to easy) to this with the Thunder Wilda I bought online and it's WAAAAYYY to easy to do this with the Thunder Wilda I bought in a store. Like it feels like moving a loose manual piece.