Ok, yeah when I took the old mainspring out it had a bend to it and the new one was almost totally straight except the end curved over near the hooks. I was wondering if the spring was bent before installation or it just broke in over time and got that bend which will happen to the new too? Also, I was watching the American Gunsmith Institute video on Smith revolvers and he said he liked the spring pretty straight, he even took one out of a gun and hammered it down to make it straighter before he installed it back into the gun. So I don't know what to think.